Sen. Graham: 18 Months To Stop Iran

With tensions high in Syria and Iran, Deputy National Security Adviser Ben Rhodes tells Norah O'Donnell that the US is ready to provide "political support" to the Syrian people, and talks about the effectiveness of sanctions on Iran.

Former New York City Mayor Rudolph Giuliani sits with Bob Schieffer to share his thoughts about the Republican presidential candidates, and explains why he is glad he did not run for the nomination in 2012.

Bob Schieffer is joined at the roundtable by "The Real Romney" co-author Michael Kranish; White House correspondent Norah O'Donnell; and CBS News political director John Dickerson to discuss the strategies of the leading Republican candidates, and President Obama's message towards Independents.

Following the Nevada caucuses, Republican presidential candidate Newt Gingrich joins Bob Schieffer to talk about his goals for winning delegates going forward; also, U.S. policy in Syria and his view on what can be done.

Bob Schieffer says he might fall asleep in front of the TV tonight watching the Super Bowl game, but the political game playing out now "still keeps me up nights."

Bob Schieffer announces Sunday's Face the Nation line-up: GOP presidential candidate Newt Gingrich, former NYC Mayor Rudy Giuliani, and a roundtable with Michael Kranish, Norah O'Donnell and John Dickerson.