Obama: "You know, he might be a little ruffled."
Colbert: "Ruffled enough to come on my show?"
Obama: "Well maybe if you sang to me, it would make him a little jealous."
But there's a base of support out there for Clinton that may never go for Obama, and the Chicago Tribune's Mike Dorning gets to the heart of it.
"Despite Obama's humble origins in a family of modest means and early days as a community organizer in economically ravaged neighborhoods on Chicago's South Side -- a biography he emphasizes on the campaign trail -- his public persona shows more of the polish of an Ivy League institution," Dorning writes. "Obama's fast rise in politics may provide him the advantages of a newcomer but it also suggests a charmed path through life. That contrasts with Clinton's well-known marital and political travails."
Is an image of Obama as elitist beginning to gel? "The odor of elitism is like onion breath: It's quick to acquire, hard to mask," Michelle Malkin writes for National Review. "In Philadelphia, he passed up the hometown cheesesteak -- gloppy, artery-clogging, and blue-collar (yum!) -- for a nibble of Spanish-imported, $100/pound ham."
And will this clip start to make the rounds? This is Michelle Obama, at a Jan. 31 rally for her husband's campaign in Delaware: "Barack's a lawyer, I'm a lawyer, everybody we know are lawyers. I'm sure half the people in this audience are lawyers."
Interesting data point: "it is Obama, not Sen. Hillary Clinton, who has received the majority of donations from" small towns in Pennsylvania, Huffington Post's Sam Stein reports.
And this: The Clinton campaign trumpeted the support Tuesday of 100 Pennsylvania mayors, but only 19 made the event. Quips ABC's Jake Tapper: "McCheese Still On the Fence; Quimby a No-Show."
Obama on Wednesday picks up the endorsement of the Pittsburgh Post-Gazette. "For us it is the candidates' vision and character that loom as the decisive factors in this race," the editors write. "One candidate is of the past and one of the future. The litany of criticisms heaped on Sen. Obama by the Clinton camp, simultaneously doing the work of the Republicans, is as illustrative as anything of which one is which. These are the cynical responses of the old politics to the new."
Super-D for Obama: Rep. Andre Carson, D-Ind., is set to endorse Obama on Wednesday, the Indianapolis Star reports. "The endorsement, the first that a current Hoosier member of the U.S. House has made in the presidential race, will be a coup for Obama."
Some (mostly unwelcome) honesty from Clinton supporters. "It's Gettysburg," Gov. Ed Rendell, D-Pa., says of the Pennsylvania primary, per The Washington Post's Libby Copeland. "If the North lost at Gettysburg, it was over."
And: "Rep. Barney Frank said the trailing Democratic presidential candidate should drop out of the race by no later than June 3 -- the date of the two last Democratic primaries -- even if it is the candidate he supports, Sen. Hillary Rodham Clinton," per the AP. Added Frank (the brother of Clinton aide Ann Lewis): "Probably sooner."