This time, it's Madonna's turn. While on tour, she had a video running in which an image of Republican Presidential Nominee John McCain was interplayed with an image of Hitler: http://www.mahalo.com/Madonna_McCain_Hitler. Democratic Presidential nominee, Barack Obama, on the other hand, was portrayed as being a virtual saint.
I know that the entertainment types can't help themselves, as they really are (for the most part) that left wing. I just hope that the American public will be so repulsed by these despicable analogies that they reject the Democrats' message entirely.