Is Obama a Plan B for Richardson Voters?  —  Barack Obama's drive to win tonight's Iowa caucuses is getting a boost from two of his putative rivals.  After earlier winning the support of Dennis Kucinich, Obama's campaign has reached an agreement with Bill Richardson for the second-choice votes …

MCCain and Romney PUsh Poll Complaints  —  Attorney General Kelly A. Ayotte is requesting the public's assistance in identifying who employed Moore-Information of Portland, Oregon to conduct a poll in New Hampshire, in November 2007, which has been alleged to be a push-poll.

Supreme Court Justice Bill Clinton?  —  WASHINGTON (CNN) — It is a title that would be sure to bring either fear or cheer to many Americans, depending on your political leanings: Supreme Court Justice Bill Clinton.  —  That provocative possibility has long been whispered in legal …

So Absurd  —  Tweety: … So if Hillary gets 33 percent “she's been rejected here in Iowa by two-thirds of the Democratic Party."  —  What of Saint McCain? … If McCain is rejected by 82% of caucusgoers he's a “big hero."  —  Tweety just repeated the Clinton/two thirds crap on Hardball just now.

Harman Warned against Destroying Tapes in 2003  —  The CIA's initial defense for destroying the videotapes showing interrogations of Al Qaeda detainees was that they'd briefed members of Congress about their intention to do this long ago.  —  To which, Rep. Jane Harman (D-CA) …

Open thread: Raucous caucus!  Update: Early results coming in; Update: Beware the entrance polls  —  Iowans are en route to their precinct meetings as we speak.  Things get going in earnest at 7:30 p.m. ET, as the Democratic assemblies are called to order, and then the hard business begins at eight.

Bush-bashing ‘Republican’ Henry Lowenstein, NYT's Favorite  —  The quickest way to get the liberal media to pay attention to you is to claim to be a Republican who hates Republicans.  It's an almost infallible public relations strategy that of late has worked well for “Republican” Monica Green.

Huckabee's Attack Ad Runs After All  —  His attack ad appears on three Iowa stations.  We find it somewhat misleading.  Another ad makes misleading claims about tax cuts.  —  The ad Huckabee said he decided not to run has now appeared at least three times in Iowa anyway.

COMING FLUFFTACULAR  —  I flagged this in today's TPMtv episode and posted a reader email on it yesterday, but if I had my choice, John McCain would not be the candidate I'd want the Democratic candidate to face in November.  He's got lots of liabilities, on a whole number of fronts.

Dodd may drop out  —  Sen. Chris Dodd, who moved his family to Iowa in an effort to make a strong showing in the caucus, has told Fox News that he would be “going to Hartford tomorrow” if he doesn't finish stronger than fourth place tonight, my colleague Martin Kady II reports.

Can Edwards Do It In Iowa?  —  The Mellencamp concert for John Edwards last night was a huge success for the campaign.  It was well attended (easily twice the size of the Huckabee “Huck'n'Chuck” rally the night before), the crowd was enthusiastic and responded to his message.