ABC News' Teddy Davis Reports: On Wednesday, a top adviser to John McCain said more definitively than he has in the past that he will step down from the Arizona senator's presidential campaign if the presumed GOP nominee faces Sen. Barack Obama, D-Ill., in the general election.
"I would simply be uncomfortable being in a campaign that would be inevitably attacking Barack Obama," said McCain adviser Mark McKinnon in an interview with NPR's "All Things Considered." "I think it would be uncomfortable for me, and I think it would be bad for the McCain campaign."
McKinnon, who was a Democrat before serving as President Bush's ad maker in 2000 and 2004, said that he plans to be behind McCain "100 percent" no matter who the Democratic nominee is. He explained, however, that if the Democrats nominate Obama, he will be supporting McCain "from the sidelines."
While saying that he does not agree with Obama on every issue, McKinnon gushed about the Illinois Democrat.
"I met Barack Obama, I read his book, I like him a great deal," said McKinnon. "I disagree with him on very fundamental issues. But I think, as I said, I think it would a great race for the country."
Audio of McKinnon's NPR interview is available here.