Three current or former governors put in strong showings on Saturday at Rubio's expense.
Unlike other debates, ABC News will not hold an undercard for low-polling candidates.
In the last debate before the New Hampshire primary, Clinton came prepared for Sanders's critiques.
The Washington Post reported that Carson planned to eliminate 50 staff positions, or nearly one-half his staff.
Trump this week has switched his rhetoric from blaming his second-place win in Iowa on his recent decisions, to attacking Ted Cruz for "fraud" in the state.
Asked by a reporter if he felt at all bad about the results in Iowa, the GOP candidate said: "There's a tinge."
Republicans denounce corporate welfare they don't like, while fiercely protecting their honeypots.
Iowa Democrats split their votes almost evenly between Sanders and Clinton.
Absent Trump, the candidates got to set out their stalls. But is it too late?
The controversial billionaire frontrunner was a no-show, as promised.
Gang of Eight! Poison Pill! Also -- Jeb!
The platform allows the contenders to share their views, photos, and videos while users search for relevant information.
Eleven GOP candidates, not including Donald Trump, will meet face-to-face for the last time before the Iowa caucuses on Monday.
South Florida Mayors ask Marco Rubio for help on climate change
A new video produced by IJReview shows Republican presidential hopeful Marco Rubio throwing passes to several prominent members of the GOP establishment.
Three campaign volunteers were in the van when it flipped.
From foreign policy and taxes, to the Second Amendment and healthcare, the candidates didn't leave out many topics as a way to criticize Obama.
Bush administration official: "Rubio's rhetoric disguises all manner of venality, corruption, nastiness and downright evil."
In contrast, his first spot, released last week, focused on the threat of terrorism and controversial plans of his.
Cruz and Trump began arguing about Cruz's eligibility to run for office.
The first GOP debate of the 2016 presidential year will be available online without a cable subscription.