The Bush campaign has an excellent graphic on John Kerry's flip flop from "Get Saddam" to "Get Bush". You have to see it and read all Kerry's statements, but here's a clue of what you'll get.

November 1998 - Kerry Backs Regime Change in Iraq
April 2003 - Kerry Says US Needs Its Own Regime Change

I can't verify this, but someone told me this is John Kerry on the campaign trail, flipping and flopping - Ouch!