"This guy is brain dead. I know I’ll be quoted; I’ll be killed for that."
Sen. Joe Biden, referring to President Bush while campaigning for the Democratic presidential nomination in Iowa
"Now the Democratic Congress has lower ratings than President Bush. You have to try hard to do that."
Sen. Sam Brownback, a Republican presidential candidate, cheering the GOP’s chances while campaigning in Iowa
"I don’t know what Arkansan is for chutzpah, but this is a gigantic case of it."
Tony Snow, White House spokesman, on former President Clinton’s criticism of Bush’s commutation of Lewis "Scooter" Libby’s prison sentence
"I’ve kind of fallen out of love with politics."
Al Gore, the former vice president again waving off calls to run for president
Sources: New York Times (2), USA Today, CNN