Debate showing deepens dilemma for Republicans

Donald Trump may have done just enough in Sunday's presidential debate to keep his leaky presidential campaign afloat - and that may have put Republicans considering abandoning him in an even tougher position.

Had Trump imploded, the flow of lawmakers and party luminaries who deserted him at the weekend over lewd comments he made about women on a videotape likely would have become a torrent, increasing demands for him to drop out of the race.