QUOTE OF THE DAY (with video)

CBS News (with video):

On another former White House insider, Obama told Smith he hopes to tone down the rhetoric between himself and fellow presidential contender Sen. Hillary Clinton of New York.

Both are slated to speak in Selma, Ala., on Sunday. But don't expect any heated exchanges like the recent give-and-go between them after Obama backer and Hollywood mogul David Geffen criticized Hillary and her husband, former President Bill Clinton. At the time, Obama refused to apologize for Geffen.

But Obama says he wants to take the high road from now on.

"I told my staff that, in those kinds of situations, we should just show some restraint and refrain from some of the snappy comebacks," Obama said.

Did his staff err by responding?

"I think we should have responded," Obama replied, "but in a more restrained way."