Gen. David Petraeus listens to questions on Capitol Hill in Washington, Tuesday, April 8, 2008, during the Senate Armed Services Committee hearing on the status of the war in Iraq.
Gen. David Petraeus, left, listens as Ambassador Ryan Crocker testifies on Capitol Hill in Washington, Tuesday, April 8, 2008, before the Senate Armed Services Committee hearing on the status of the war in Iraq.
Gen. David Petraeus testifies on Capitol Hill in Washington, Tuesday, April 8, 2008, before the Senate Armed Services Committee hearing on the status of the war in Iraq.
Gen. David Petraeus and Ambassador Ryan Crocker testify on Capitol Hill in Washington, Tuesday, April 8, 2008, before the Senate Armed Services Committee hearing on the status of the war in Iraq.
An Army aide adjusts charts as Gen. David Petraeus and Ambassador Ryan Crocker testify on Capitol Hill in Washington, Tuesday, April 8, 2008, before the Senate Armed Services Committee hearing on the status of the war in Iraq.
Gen. David Petraeus arrives to testify before the Senate Armed Services Committee on the status of the war in Iraq Tuesday, April 8, 2008, in Washington.
Gen. David Petraeus, left, and Ambassador Ryan Crocker prepare to testify on Capitol Hill in Washington, Tuesday, April 8, 2008, before the Senate Armed Services Committee hearing on the status of the war in Iraq.
Anti-war protesters demonstrate before the start of hearings before the Senate Armed Services Committee on the status of the war in Iraq Tuesday, April 8, 2008, in Washington.
Democratic presidential hopeful Sen. Hillary Rodham Clinton, D-N.Y., a member of the Senate Armed Services Committee, listens to testimony on Capitol Hill in Washington, Tuesday, April 8, 2008, from Gen. David Petraeus during the committee's hearing on the status of the war in Iraq.
Republican presidential candidate Sen. John McCain, R-Ariz., a member of the Senate Armed Services Committee, listens to testimony on Capitol Hill in Washington, Tuesday, April 8, 2008, during the committee's hearing on the status of the war in Iraq.
Democratic presidential hopeful Sen. Barack Obama, D-Ill., a member of the Senate Foreign Relations Committee, listens to the testimony of Gen. David Petraeus on Capitol Hill in Washington, Tuesday, April 8, 2008, during the committee's hearing on the status of the war in Iraq.