Obama: ‘Premature’ to talk joint ticket  —  Speaking to reporters on his plane before leaving San Antonio for Chicago, Sen. Barack Obama hinted at taking a tougher line against Clinton in the coming weeks, telling reporters that she must back up her experience argument with details, my colleague Carrie Budoff Brown reports.

Bush: McCain ‘Is Not Going To Change’ My Foreign Policy  —  At the White House today, President Bush threw his support behind Sen. John McCain (R-AZ).  In a press conference after a private lunch, a reporter asked the duo how McCain would “make the case that you're going to provide the change that the voters seem to want.”

CHILL OUT....The hot topic of conversation right now is the proposition that a long, drawn-out Democratic primary runs the risk of destroying the party and putting John McCain in the White House.  So for the good of the country, Hillary should withdraw.  —  Now, this might be true.

It's Rush Wot Won It  —  In the days running up to these last primaries, Rush Limbaugh told his national audience of conservatives to vote in the Democratic race. … It turned into a pretty hot meme in Texas, and on Monday, while Rush was out, guest host Mark Davis scored an interview with Bill Clinton.

Sen. Obama, time to call us about Rezko: (312) 321-2417  —  Jury selection began Monday in the trial of political influence peddler Tony Rezko.  This would be the time — before a single witness takes the stand — for Barack Obama to finally share every detail of his relationship with Rezko.

Nasty  —  Sadly, I agree with Chris that this is going to get nastier.  The campaigns and candidates themselves may not get nasty, but I get the sense that supporters of the various candidates are getting angrier at the other camp.  Sure a lot of this is just relatively harmless virtual …

Gallup Daily: Clinton 48%, Obama 44%  —  Based on polling conducted March 2-4, 2008  —  PRINCETON, NJ — Hillary Clinton has moved ahead of Barack Obama in national Democratic nomination preferences, 48% to 44%, in polling conducted Sunday through Tuesday.

FINAL THOUGHTS  —  The big headlines tonight are now in focus.  Hillary takes three of four primaries, and the two big states.  Yet the delegate spread didn't budge.  The possibilities seem to range from a high-single digit pick up for Hillary to the possibility of a net pick up for Obama.

CAPTURED FARC COMPUTERS NAME BARACK OBAMA (Updated)  —  Captured FARC documents name Obama  —  Dead terrorist Raul Reyes had information that FARC was meeting “gringos” about Obama.  —  The computers captured this past weekend by Colombian soldiers at the campsite of FARC #2 Raul Reyes contained loads …

Here's A First Look At Third-Party Group's Ad Against McCain  —  We've just obtained a copy of the new ad that the 501c4 issue-advocacy group Campaign to Defend America is running against John McCain in Ohio and Pennsylvania.  —  It says that McCain offers more of the “McSame as Bush,” …

More on Clinton, Obama, and the OODA loop  —  Updated, below:  —  About two weeks ago I mentioned Chuck Spinney's analysis of the Clinton-Obama race, from the perspective of “Fourth Generation Warfare” and the famous John Boyd “OODA Loop.”  (Details on those concepts in the original post.)

Rep. Ellison: Clinton Trying To Reap Benefit Of Obama-Muslim Smear  —  The Clinton campaign flatly denies any hand in the Obama-is-a-Muslim smear campaign that has bubbled beneath the media surface, but it is more than willing to take advantage of it, says the lone Muslim member of congress.

Pelosi: Democrats will have a nominee before the convention  —  WASHINGTON (CNN) - House Speaker Nancy Pelosi said Wednesday now is not the time for superdelegates to wade into the fight over the Democratic presidential nomination.  “I think the electoral process has to work its way,” the California Democrat told reporters.