Edwards: "We're At Crunch Time Now"

Even though he lags Clinton and Obama in the national polls, John Edwards is very competitive in Iowa. Here he fires up the troops in Des Moines before setting out on -- what else -- another bus tour of the state.

Sound Bite: "This cause is about making certain that America rises, that America rises up again. That America rises up in a way that not just a few do well but that everybody in this country does well."