As It Happens

Mitt Romney jokes about having a "Seinfeld" moment during introductions at Wednesday's CNN GOP debate in Arizona.

Ron Paul defends his ad calling Rick Santorum "a fake" during Wednesday's CNN debate.

Mitt Romney defends his stance on contraception against his opponents during the CNN debate.

Newt Gingrich and Mitt Romney answer a question about birth control from an online viewer.

A new documentary about the Clinton administration details what went on behind the scenes of the Monica Lewinsky scandal.

Rick Santorum found that his position at the top of polls made him the biggest target in Wednesday's CNN Republican presidential debate, possibly the last of the GOP primary and caucus campaign.

The debates this presidential primary season have been less like Lincoln-Douglas than former heavyweight champ Buster Douglas -- punch-drunk pugilism, providing entertainment and some great upsets along the way.

The Treasury Department will unveil President Barack Obama's corporate tax reform plan on Wednesday, senior administration officials told CNN.

Wednesday night's CNN debate lands at a critical moment in the Republican race, especially for Mitt Romney, says Timothy Stanley

Ted Turner: Congress is trying to do an end run to OK the Keystone oil pipeline, which could mean disastrous toxic spills and poisoned water.

Political analysts David Gergen and Erick Erickson provide their opinions on who was the winner of the Arizona debate.

CNN contributors Ari Fleischer and Donna Brazile explain who they think "won" the CNN debate in Arizona.

Presidential candidate Rick Santorum talks about his performance in the Arizona Republican debate.

Ron Paul explains why U.S. aggression and talks of going to war against Iran are harmful in the long run.

Mitt Romney says the reason we have "Obamacare" is because of the pro-choice senator Rick Santorum supported.

An online debate viewer asks the GOP candidates to describe themselves in one word.

William Bennett says the health care law should be a rallying cry that will reinvigorate and enlarge the base of opposition to President Barack Obama.

Rick Santorum and Mitt Romney get heated as they debate the pros and cons of Congressional earmarks.

Mitt Romney rails against what he calls President Obama's "religious intolerance" in Wednesday's CNN debate in Arizona.

President Barack Obama complained Tuesday that he doesn't get out much. Then he noted he doesn't have to when B.B. King and Mick Jagger come to play a concert at his house.