Clinton Goes Nuclear; Obama Camp Fires Back  —  ABC News' David Wright, Sunlen Miller, Andy Fies, Eloise Harper, Kate Snow & Nitya Venkataraman Report: Closing in on the March 4 contests, Sen. Hillary Clinton, D-N.Y., debuted a campaign ad on Friday with ominous undertones.

State Democrats say Clinton camp may sue  —  Legal action could disrupt or delay caucuses, party says  —  AUSTIN — The Texas Democratic Party warned Thursday that election night caucuses scheduled for Tuesday could be delayed or disrupted after aides to Hillary Rodham Clinton threatened …

Unless Obama Wins, He Loses  —  Huh?

Come On!  —  I love arcane debates over arcana, but John McCain is a US citizen, eligible to be president of the United States.  Period.  Full stop.  The New York Times story that launched this whole discussion was absurd.  No one is going to successfully contest McCain's standing (though I'm sure some idiot will try).

Opponents slam Obama after CTV story on NAFTA  —  Allegations of double talk on NAFTA from the Obama and Clinton campaigns dominated the U.S. political landscape on Thursday.  —  On Wednesday, CTV reported that a senior member of Barack Obama's campaign called the Canadian embassy within …

Police: Deadly toxin found at Las Vegas hotel  —  (CNN) — Police in Las Vegas, Nevada, are investigating the discovery of what they said is the deadly poison ricin in a hotel room.  —  Authorities were called to an Extended Stay America hotel around 3 p.m. PT Thursday after a man brought …

Copycat.  —  I feel bad about what I'm going to do here.  —  I've had a lot of fun at Tim Goeglein's expense over the last few months.  Mean-spirited fun, certainly, but my problem with him has always been one of personal taste.  In his columns for The News-Sentinel, my old newspaper …

Hillary Cuts an Ad ... for McCain  —  Only the Clinton campaign would think mom would be checking on the kids at 3:00 am still dressed in her snazzy business suit.  —  I thought it was a bit creepy of that person to be looking in on your kids sleeping at 3am.

Harry Withdrawn From Afghanistan  —  LONDON — The Defense Ministry announced Friday that Prince Harry, the third in line to the British throne, would have to come home from Afghanistan because it was too risky for him to stay there.  —  The prince, 23, has been in Helmand Province …

FOX News Poll: Clinton Leads in Ohio; Obama Up in Texas  —  Hillary Clinton has an 8-point lead over Barack Obama heading into Tuesday's Ohio Democratic primary, due largely to the support of white women, seniors and working-class voters, while the race is virtually a tie in Texas …

John McCain ‘Accidentally’ Calls Himself A “Liberal Republican”  —  At a town hall meeting in Richardson, Texas, Thursday afternoon, Sen. John McCain, R-Ariz., made a gaffe that will surely provide myriad conservative radio talk show hosts confirmation of their views, by accidentally calling himself a liberal.

Reformer: Trial Will Reveal ‘Cesspool’ of Obama's Allies  —  Trial for Indicted Fundraiser Tony Rezko Set for Monday  —  With the corruption trial of one of Sen. Barack Obama's longtime friends and supporters set to begin Monday in Chicago, Ill., reform watchdogs say it will reveal the …

Egyptian al Qaeda leader reported killed in South Waziristan airstrike  —  South Waziristan Taliban leader Mullah Nazir.  Click to view.  —  Pakistani and US intelligence are attempting to sort out the names of the al Qaeda and Taliban operatives killed in yesterday's airstrike in Azam Warzak, South Waziristan.