At Debate, Two Rivals Go After Defiant Clinton  —  MANCHESTER, N.H. — It was as if they sensed vulnerability.  —  Senator Barack Obama and John Edwards went after Senator Hillary Rodham Clinton as never before in a televised debate here on Saturday night.

Democratic Debate: Edwards Backs Up Obama  —  MANCHESTER, N.H. — Sen. Hillary Rodham Clinton (N.Y.) cast off the magnanimous, above-the-fray approach she had used up until now in the campaign, aggressively challenging Sen. Barack Obama (Ill.) and former Sen. John Edwards (N.C.) over which of the three can truly bring about change.

U.S. Considers New Covert Push Within Pakistan  —  WASHINGTON — President Bush's senior national security advisers are debating whether to expand the authority of the Central Intelligence Agency and the military to conduct far more aggressive covert operations in the tribal areas of Pakistan.

MY TAKE ON THE DEM DEBATE  —  So, a few observations about the Democratic debate.  —  First, a few months ago, I said that I didn't get what Barack Obama thought he was doing in one of the debates, that he was doing a very good job debating as the frontrunner, when in fact he was falling further and further behind Hillary Clinton.

Dem Debate Roundup: Work Horse Versus Show Horse  —  A quick rundown on last night's Dem debate highlights...  Here's the moment that came as close as possible to capturing, in a brief exchange, the entire argument between Hillary and Obama: … Hoping to highlight this disagreement …

Hillary's Debate Moment  —  It won't come across on the transcript, but Sen. Hillary Clinton got angry during the debate tonight.  —  She was bickering with Sen. Barack Obama about their differences on health insurance, and whether Obama's plan leaves millions of Americans uninsured.