Here's an important (I think) article by Glenn Greenwald and I'll try to summarize its thesis. It's that for years after 9/11, Bush's defenders met almost every criticism of the administration by charging that the critic hated America, was pro-terrorist, was giving aid and comfort to the enemy, etc. But now, a lot of those Bush defenders are looking to distance themselves from him and his actions and are engaging in the same kinds of comments they previously found so treasonous.