Um, that's everything...
This, courtesy of Dan Froomkin's Washington Watch column in the Washington Post, just makes me laugh. In this, someone who identifies himself as someone who "...have wanted [Bush's] presidency to succeed..." states the three biggest mistakes he has made.
One is personalizing 9/11 - which has pretty much been the agenda since, oh, about 5:00 pm on that day in 2001.
Two is selecting Cheney as his VP, and three is bringing Karl Rove into the White House.
I don't think it's hard to argue that every major (and probably every minor one, too) decision that has come from this administration has had either Dick Cheney's and/or Karl Rove's meaty fingerprints all over them.
So...in essence, this is a roundabout way of saying that every single part of the Bush presidency has been a mistake.
Hey, wait...that's my line!

clipped from www.washingtonpost.com
William McKenzie writes in his Dallas Morning News column about "the three worst mistakes of this presidency.
"They are linked together by a trust-us attitude. And for those of us who have wanted his presidency to succeed, these mistakes have undermined Mr. Bush's pledge to unite America and seek a humble presence around the world."
They are: "the selection of Dick Cheney as vice president," "the personalizing of 9/11," and "bringing Karl Rove into the White House."
