Obama: Race Will Tighten

In a taped interview on NBC's "Today," the Land of Lincolner says he has instructed his campaign not to let up.

Thinks the race will tighten "because that's just what happens" closer to Election Day.

Also talks about Colin Powell's endorsement, whether he'll go on the stump and how he doesn't know enough about Sarah Palin.

Read more here. Watch the interview above.