President George W. Bush made a rare visit to Capitol Hill to drum up support for the beleaguered immigration bill. Observers wonder if the bill still has a chance to pass -- and who, if anyone, actually wants it.

On "Power Lunch," CNBC's Bill Griffeth hosted a triumvirate of veteran political watchers weighing in on the issue: Jay Carney, Time Magazine's Washington bureau chief; Michael Abramowitz, Washington Post White House correspondent, and John Harwood, CNBC's chief Washington correspondent.