Obama says he can't be sure. "I think when Romney starts saying this stuff, sometimes it may be honest mistakes, sometimes not," Obama said during a campaign appearance in New Hampshire Wednesday.
In response to another question -- one about how he'd defend himself against attacks like the Swift boating of John Kerry -- Obama said that he has "no doubt there will be some of that -- trying to make me into this foreign, odd, clearly black person and to scare people." The only solution: "When people try to Swift boat you, you have to respond forcefully, you have to respond immediately and you have to respond truthfully."
One solution Obama declined to embrace for a campaign that hasn't yet taken him where he wants to be: Selecting Al Gore as his running mate. Obama said Wednesday that he'd like Gore to serve in a "senior" capacity in an Obama administration, but that a second tour as V.P. might be a "step down" for a man who has won both an Academy Award and a Nobel Peace Prize.