University of Denver students Zach Gonzales (L) and Dia Mohamned shake hands as they stand in as Republican presidential candidate and former Massachusetts Governor Mitt Romney and U.S. President Barack Obama during a presidential debate dress rehearsal at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
Holly, a veteran in support of Republican presidential nominee, former Massachusetts Gov. Mitt Romney, drives his M35 military transport across campus prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
The Denver Police Department close streets in preparation for the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
US President Barack Obama steps off Air Force One on October 3, 2012 upon arrival at Buckley Air Force Base in Denver, Colorado. Obama is in Denver, Colorado for the first presidential debate. (credit:MANDEL NGAN/AFP/GettyImages)
Denver Prepares For First Presidential Debate
US President Barack Obama steps off Air Force One on October 3, 2012 upon arrival at Buckley Air Force Base in Denver, Colorado. Obama is in Denver, Colorado for the first presidential debate. (credit:MANDEL NGAN/AFP/GettyImages)
Denver Prepares For First Presidential Debate
President Barack Obama steps off Air Force One on Oct. 3, 2012 upon arrival at Buckley Air Force Base in Denver. (credit:MANDEL NGAN/AFP/GettyImages)
Denver Prepares For First Presidential Debate
Drew Hymer of Arvada, Colorado stands on the street corner displaying a sign in support of Personhood prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver student Zach Gonzales prepares to stand in as Republican presidential candidate and former Massachusetts Governor Mitt Romney during a presidential debate dress rehearsal at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
US President Barack Obama steps off Air Force One on October 3, 2012 upon arrival at Buckley Air Force Base in Denver, Colorado. Obama is in Denver, Colorado for the first presidential debate. (credit:MANDEL NGAN/AFP/GettyImages)
Denver Prepares For First Presidential Debate
Holly, a veteran in support of Republican presidential nominee, former Massachusetts Gov. Mitt Romney, drives his M35 military transport across campus prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Noah Kaplan, a supporter of U.S. President Barack Obama, carries a sign across the street prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
As members of the media prepare their television sets, University of Denver students Zach Gonzales (L) and Dia Mohamed stand in for U.S. President Barack Obama, Republican Presidential candidate Mitt Romney during a dress rehearsal for tomorrow's presidential debate at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Win McNamee/Getty Images)
Denver Prepares For First Presidential Debate
Supporters of U.S. President Barack Obama post signs on store fronts prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Supporters of U.S. President Barack Obama post signs on store fronts as students walk by prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Noah Kaplan, a supporter of U.S. President Barack Obama, carries a sign across the street prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
A man vacuums on the stage prior to the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates at 9 p.m. EST. (credit: NICHOLAS KAMM/AFP/GettyImages)
Denver Prepares For First Presidential Debate
US President Barack Obama steps off Air Force One on October 3, 2012 upon arrival at Buckley Air Force Base in Denver, Colorado. Obama is in Denver, Colorado for the first presidential debate. (credit:MANDEL NGAN/AFP/GettyImages)
Denver Prepares For First Presidential Debate
Workers build security fencing outside the Magness Arena at the University of Denver in Denver, Colorado, October 2, 2012, where the first presidential debate will take place. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates on October 3. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
Workers prepare for the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Chip Somodevilla/Getty Images)
Denver Prepares For First Presidential Debate
Shaun Spink vacuums during preparation for the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Chip Somodevilla/Getty Images)
Denver Prepares For First Presidential Debate
Shaun Spink with the University of Denver vacuums on the stage prior to the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates at 9 p.m. EST. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
Shaun Spink vacuums during preparation for the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
A demonstrator holds a sign in support of Personhood as Myron Moton (R) displays a sign in support of Republican presidential nominee, former Massachusetts Gov. Mitt Romney while 'Holly' a veteran in support of Romney drives in a M35 military truck by prior to the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Shaun Spink with the University of Denver vacuums in front of the stage prior to the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates at 9 p.m. EST. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
University student Dia Mohamed (R) gets a wireless microphone put on his tie as he stands in for President Barack Obama during rehearsal for the first presidential debate in the Ritchie Center at the University of Denver October 2, 2012 in Denver, Colorado. Republican presidential nominee and former Massachusetts Gov. Mitt Romney and President Barack Obama will square off on Wednesday for the first of three presidential debates before the November 6 election. (Photo by Chip Somodevilla/Getty Images)
Denver Prepares For First Presidential Debate
University student Dia Mohamed (R) is given an oversized dark suit jacket as he stands in for President Barack Obama during rehearsal for the first presidential debate in the Ritchie Center at the University of Denver October 2, 2012 in Denver, Colorado. Republican presidential nominee and former Massachusetts Gov. Mitt Romney and President Barack Obama will square off on Wednesday for the first of three presidential debates before the November 6 election. (Photo by Chip Somodevilla/Getty Images)
Denver Prepares For First Presidential Debate
Workers build security fencing outside the Magness Arena at the University of Denver in Denver, Colorado, October 2, 2012, where the first presidential debate will take place. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates on October 3. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
University of Denver students Zach Gonzales (R) and Dia Mohamed (L) are seen on a television monitor as they stand in as Republican presidential candidate and former Massachusetts Governor Mitt Romney and U.S. President Barack Obama during a presidential debate dress rehearsal at the University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
Workers attach labels to audience seats while preparing for the first presidential debate in the Ritchie Center at the University of Denver October 2, 2012 in Denver, Colorado. Republican presidential nominee and former Massachusetts Gov. Mitt Romney and President Barack Obama will square off on Wednesday for the first of three presidential debates before the November 6 election. (Photo by Chip Somodevilla/Getty Images)
Denver Prepares For First Presidential Debate
Workers make adjustments to the stage ahead of the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
A bicyclist rides past the security perimeter fence placed in preparation for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Dia Mohamed (R), a stand-in for US President Barack Obama, and Zach Gonzales, a stand-in for Republican Presidential nominee Mitt Romney, both students at the University of Denver, participate in a rehearsal for the first presidential debate to be held at Magness Arena at the University of Denver in Denver, Colorado, October 2, 2012. Obama and Romney will square off during the first of three debates on October 3. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
A truck drives past the security perimeter fence placed in preparation for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
A sign for the the University of Denver, where the first presidetial debates will be held, sits on campus October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Road closure barricades sit on the side of a road to be used during the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Traffic drives on the segement of Interstate 25 near the venue for the first presidential debate on October 2, 2012 in Denver, Colorado. The Interstate will be closed from 5 PM until 10 PM when Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver student Sam Garry sits at the moderator's desk before a presidential debate dress rehearsal at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
Workers build security fencing outside the Magness Arena at the University of Denver in Denver, Colorado, October 2, 2012, where the first presidential debate will take place. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates on October 3. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
University of Denver student Sam Garry sits at the moderator's desk before a presidential debate dress rehearsal at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
Traffic drives on the segement of Interstate 25 near the venue for the first presidential debate on October 2, 2012 in Denver, Colorado. The Interstate will be closed from 5 PM until 10 PM when Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
James Geary of Baltimore, Maryland, a senior at the University of Denver, walks to class along the security perimeter fence that is in place in preparation for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Dia Mohamed (R), a stand-in for US President Barack Obama, and Zach Gonzales, a stand-in for Republican Presidential nominee Mitt Romney, both students at the University of Denver, participate in a rehearsal for the first presidential debate to be held at Magness Arena at the University of Denver in Denver, Colorado, October 2, 2012. Obama and Romney will square off during the first of three debates on October 3. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
Television crews and media prepare on the eve of the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver students Zach Gonzales (L) and Dia Mohamed stand in as Republican presidental candidate and former Massachusetts Governor Mitt Romney and U.S. President Barack Obama during a presidential debate dress rehearsal at the University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
Road closure barricades sit on the side of the road to be used during the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Mark Stahlbaum works on the security perimeter fence in preparation for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Workers standby during a rehearsal for the first presidential debate to be held at Magness Arena at the University of Denver in Denver, Colorado, October 2, 2012. US President Barack Obama and Republican Presidential nominee Mitt Romney will square off during the first of three debates on October 3. (credit: SAUL LOEB/AFP/GettyImages)
Denver Prepares For First Presidential Debate
James Geary of Baltimore, Maryland, a senior at the University of Denver, walks to class along the security perimeter fence that is in place in preparation for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver students Zach Gonzales (L) and Dia Mohamed stand in for U.S. President Barack Obama, Republican Presidential candidate Mitt Romney during a dress rehearsal for tomorrow's presidential debate at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Win McNamee/Getty Images)
Denver Prepares For First Presidential Debate
"Obama" is scrawled on the sidewalk as security prepares for road closures for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Television satellite truck are parked on the eve of the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University students Zach Gonzales (L) and Dia Mohamed, stand-in for candidates Gov. Mitt Romney and President Barack Obama, shake hands during rehearsal for the first presidential debate in the Ritchie Center at the University of Denver October 2, 2012 in Denver, Colorado. Republican presidential nominee and former Massachusetts Gov. Mitt Romney and President Barack Obama will square off on Wednesday for the first of three presidential debates before the November 6 election. (Photo by Chip Somodevilla/Getty Images)
Denver Prepares For First Presidential Debate
Television crews and media prepare on the eve of the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
Workers make last minute repairs ahead of the first Presidential Debate at the University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
A woman runs along a security perimeter fence placed in preparation for the first presidential debate at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver students Zach Gonzales (L) and Dia Mohamed stand in for U.S. President Barack Obama, Republican Presidential candidate Mitt Romney during a dress rehearsal for tomorrow's presidential debate at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Win McNamee/Getty Images)
Denver Prepares For First Presidential Debate
Television crews broadcast outside the Ritchie Center where the first presidential debate will take place at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver students Zach Gonzales (L) and Dia Mohamed (R) prepare to stand in as Republican presidential candidate and former Massachusetts Governor Mitt Romney and U.S. President Barack Obama during a presidential debate dress rehearsal at the University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Justin Sullivan/Getty Images)
Denver Prepares For First Presidential Debate
Television crews begin to broadcast outside the Ritchie Center where the first presidential debate will take place at the University of Denver on October 2, 2012 in Denver, Colorado. Republican presidential candidate Mitt Romney will square off against U.S. President Barack Obama in the first of three debates on October 3. (Photo by Doug Pensinger/Getty Images)
Denver Prepares For First Presidential Debate
University of Denver students Zach Gonzales (L) and Dia Mohamed stand in for U.S. President Barack Obama, Republican Presidential candidate Mitt Romney during a dress rehearsal for tomorrow's presidential debate at University of Denver on October 2, 2012 in Denver, Colorado. Tomorrow marks the first presidential debate with the two candidates as little more than one month remains before Americans head to the polls to elect their president for the next four years. (Photo by Win McNamee/Getty Images)