Why Donald Trump is staying on top for now
John Dickerson: Trump won the last GOP debate of 2015 because he was more Trump than ever, and that's working well for him
Marco Rubio
In Republican debate, Rubio and Cruz try to elbow each other out
As the first nominating contests draw closer, the GOP candidates trailing Trump do their best to stay relevant
5th GOP debate: Candidates spar over ways to fight ISIS
Nine Republicans competing for the 2016 nomination are participating in the fifth GOP debate, which is hosted by CNN and Facebook
Debate watchers liked Jeb Bush's jab at Donald Trump
The former Florida governor went on the offensive against his GOP rival at the fifth Republican debate
How to watch Tuesday night's Republican debate in Las Vegas
The last GOP debate of 2015 takes place Tuesday in Las Vegas
5th Republican debate
The top Republican candidates for president face off in Las Vegas, Dec. 15, 2015
New Hampshire GOP leaders fret over crowded 2016 field
Several candidates are popular in the state, but none may be able to take the lead from Donald Trump before the state's Feb. 9 primary
Poll: Hillary Clinton would beat Donald Trump, Ted Cruz, but not Rubio or Carson
Clinton holds a commanding lead in the Democratic field, but in the general election some Republicans would beat her
The coming showdown between Donald Trump and Ted Cruz
The Texas senator has shown some impressive restraint in how he's approached the fight of his life, John Dickerson says
How big is Donald Trump's lead in South Carolina?
Two polls show him leading the Republican field, but the margins are very different
Poll: Millennials want ground troops to fight ISIS
But a much smaller percentage actually want to or have served in the military
In Michigan, Rubio endorser inadvertently insults him
Rubio told a rally that Michigan was key to his victory in the primaries and general election
Cruz takes lead from Trump in new Iowa poll
The Texas senator emerges as the leader in the early voting state for the first time
2016 presidential candidates react to Obama's Oval Office address on ISIS
Republicans started criticizing the speech as soon as President Obama started speaking
At Florida homecoming, Rubio talks San Bernardino, state primary
"This is a very dangerous world that we live in," Rubio says days after San Bernardino shooting
Presidential candidates can't decide what to do about guns, terrorists
Several bills to expand gun control were shot down by Congress this week, including one that bans people on the terror watch list
Rubio: Gun background checks couldn't have stopped "terror attack"
The Florida senator says gun violence occurs, not because of lax gun laws, but because of mental health issues and cultural changes in the U.S.
Senate begins debate on Obamacare repeal bill
The bill would eliminate major portions of Obamacare and cut off funding to Planned Parenthood for one year
Where candidates stand on Medicare and health reform
Health care is critical for all Americans, particularly retirees, so you should know how your retirement could be impacted
2016 Presidential campaigns cashing in on Black Friday sales
The candidates are offering discounts on campaign merchandise at their online stores
New Hampshire rejects challenge to Sanders' and Trump's candidacies
Bernie Sanders, Donald Trump, Marco Rubio and Ted Cruz all faced eligibility challenges to be listed on the New Hampshire primary ballot
Poll: Cruz threatens to overtake Trump in Iowa
A new poll has the Texas senator just 2 points behind the Republican frontrunner and well ahead of Ben Carson
Marco Rubio clarifies comments on Paris attacks
Rubio had called the Paris attacks a "positive development for national security awareness for Americans
Rubio highlights national security in first TV ad
The Florida senator talks about the recent attacks in Paris
Poll: Trump retakes lead, Cruz surges in IA; Rubio second in NH
CBS News poll finds Trump, Cruz, Rubio passing "commander-in-chief" test with Republicans as terrorism takes focus of GOP race; Carson slips
Live
3 children, 1 teacher killed in Oregon school shooting, police say
Vance says "selling access to the White House" is "disgusting"
White House prepares plans to use "mother of all bombs" on Iran
Exclusive
Ousted general warned of missile defense shortage before Iran war
Live
Strait of Hormuz still unsafe for ships, maritime group warns
Trump calls off plan to livestream Fort Hood shooter's execution
White House's Katie Zacharia confirms she never passed bar exam
Sikh separatist says FBI warned him of new threat against him
