As It Happens

Rick Santorum reacts to Mitt Romney's victory in Nevada and looks to the upcoming primaries.

Amitai Etzioni says that no one can assume that we can rely on Iranian leaders to make rational decisions.

Mitt Romney has taken a commanding lead in the Nevada caucuses, winning almost 50% of the vote reported so far. Ron Paul and Newt Gingrich remain in a tough battle for second place with Rick Santorum in a distant fourth.

Newt Gingrich said Sunday he is plotting a Southern revival, while Rick Santorum and Ron Paul seek stronger showings in upcoming caucuses to slow front-runner Mitt Romney's momentum after his second straight victory in the Republican presidential race.

Julian Zelizer says the former Massachusetts governor has put together a campaign that raises money effectively and has avoided many pitfalls

In the 1,257 GOP debates we have had to sit through, poverty and the poor have rarely come up, so it was no surprise that Mitt Romney would be dismissive of them in an interview this week with CNN's Soledad O'Brien.

He may be a non-gambler, but Mitt Romney had a good night in Vegas. He left town as the night's big winner, capturing his second strong victory in a row.

With the Syrian crisis worsening, Shadi Hamid says the west must look for ways to help tip the balance against the regime

Ruben Navarrette Jr. says that Newt Gingrich needs to focus on the issue of immigration with voters in the Southwest.

Rather than be surrounded by supporters on Nevada caucus night, Newt Gingrich surrounded himself with reporters.

U.S. aid to Egypt could suffer if Egypt persists in prosecuting 43 people, including 19 Americans, in a crackdown on nongovernmental organizations, White House and State Department officials said Monday.

The United States shuttered its embassy in Syria and pulled out its remaining staff Monday after the government refused to address its security concerns, the State Department said.

Intense blasts echoed through the ravaged Syrian city of Homs on Monday after a weekend bloodbath ended in hundreds of deaths there, local activists said.

Mitt Romney's front-running campaign on Monday criticized trailing rival Rick Santorum for remarks about Romney's health care plan in Massachusetts, showing concern Santorum might be poised for a strong showing in this week's GOP presidential contests.

The author of a new tell-all book claims she lost her virginity to President John F. Kennedy when she was a 19-year-old White House intern, and that the affair lasted 18 months.

Suppose they held an election, and the economy got better. Just last month, the jobless rate fell to its lowest level in almost three years.

David Frum: After a bad defeat in the Nevada and possible humiliation ahead, the best option for Newt Gingrich's future might be Mitt Romney's defeat.

"Saturday Night Live" jokes about presidential candidate Newt Gingrich's aspirations for a colony on the moon.

CNN contributors Erick Erickson and Will Cain critique Romney's Nevada victory speech.

Have Americans forgotten a key lesson of Watergate? The scandal prompted campaign reforms that some say have been gutted ahead of this year's presidential race.