From Radar Online, FWIW:

John McCain’s Obama- esque remarks about our “wasted” resources in Iraq weren’t the only comments that landed him in hot water after a recent appearance on Late Night with David Letterman. Many of his staff were blindsided by his campaign announcement. And several aides were so outraged that they’ve quit, say Republican insiders. “They’re imploding ­he had a game plan that had him announcing much later in the year,” one top Republican aide tells Radar, adding that the campaign is “in serious trouble … Romney’s plan and Rudy’s jump in the polls caused him to scrap his plans completely. When you do that, and you’re not prepared for it, the staff goes crazy. Some of his coordinators in different states were pulling their hair out!” Another insider, a guru to the conservative movement, says that McCain himself is growing increasingly desperate in the wake of his downward slide in the polls­a slip hastened by his steadfast support of the very man who savaged him and his family during the 2004 election, George W. Bush, and the president’s unpopular plan for troop surge in Iraq. “One of the top aides to the Republican leadership told me that McCain has lost so much support, he’s simply beside himself. He’s wringing his hands. Things are sinking fast­ in two or three weeks, we’ll know if there is any recovery.”