Sarah Palin made the claim (already old news, because it was hauled out months ago; combined with McCain giving up on Michigan, and Palin being in Calif. this has a vague whiff of desperation) Obama hangs out with terrorists; because a onetime member of the Weatherman (since reformed) sits on the board of a charity Obama is also on.
Well... John McCain thinks G. Gordon Liddy is just fine
For those whom the name is, at best, the name of a radio host they don't listen too... he's a guy who served a bit more than four years for actively trying to undermine the political system; committed more than one break in while pursuing that end and says he was planning to kill a journalist.
More recently he was on the radio (during the Clinton administration) telling people to make headshots when the police came up the drive, because they wear bullet proof vests.
All of this has not stopped McCain from taking his money.
So there you have it. Being on the board of a charity with someone who says he was wrong to throw bombs = bad; it's consorting with terrorists.
Taking money from a guy who still thinks shooting federal agents is good, and has no remorse for committing crimes meant to thwart our system of gov't = not a problem.