U.S. Sen. Barck Obama

Some pretty high profile GOPers have endorsed U.S. Barack Obama as of late -- Colin Powell, former Reagan Chief of Staff Ken Duberstein.

Late last week, U.S. John McCain reeled in the sitting Vice President, Dick Cheney. Question is, did he want to throw him back under the political-catch-and-release program? The Obama campaign is betting "yes." In its latest ad, the Obama team uses Cheney's endorsement (he says he's "delighted" to endorse McCain-Palin) as what its sees as evidence that McCain will give the nation four more years of Bush-Cheney. Given that McCain has been running away from Bush as fast as he can, my guess is that he wishes Cheney had just shut it. It's a pretty brutal ad with lighthearted music to take the edge off.

Obama's new ad will start airing nationally tomorrow. Watch it here: