The Washington Post looks at the quotable Joe Biden and wonders if Obama is taking a big risk.
...there is no question that his tendency to shoot from the lip worries some in Obama world. As one Democratic consultant put it: "You know there will be three days in the campaign where someone in Chicago will get a call and respond -- 'What did you say he said?'"
Update! Charlie Sykes has a round-up of reaction to Senator Biden's foot-in-mouth disease.