Depends on which Minister of Magic you mean.
Cornelius Fudge was simply in denial that Voldemort could/did return. I don't think he was inherently evil, but had more of a "if I don't think about it, it won't happen" attitude.
Rufus Scrimgour was more manipulative, but he did believe in the threat. He may be the closest to Clinton as he wanted to use Harry to enhance the image of the ministry.
Pius Thicknesse was in under an Imperious Curse. He was being controlled by Voledmort. Nobody controls Bill Clinton. Not even Bill Clinton.
Sorry, I don't want to sound picky but I just don't think Scrimgeour should be compared to Clinton, at least, not after his actions in the last book (I don't want to spoil it, but if you've read it, you know what I'm talking about).