Morning Show Summary

Obama-backing Sen. Casey pitted against Clinton-backing Pennsylvania Gov. Ed Rendell in segment on NBC's "Today." The two discussed poll numbers, superdelegates, the significance of a Clinton win in Pennsylvania.

Rendell also on "Fox & Friends," addressed Obama's "bitter" remarks, saying maybe they didn't come out the right way, but they show a misunderstanding of Pennsylvania voters. Also downplayed margin Clinton has to win the state to claim an effective victory.

Mitt Romney on CNN's "American Morning" and MSNBC's "Morning Joe."