Not exactly must-see TV

What’s worse than a Democratic presidential debate packed with eight candidates battling for all-too-scarce moments of airtime? A Democratic presidential debate that features just three candidates — at least if those candidates are not exactly front-runners Joe Biden, Dennis Kucinich and Mike Gravel. Those are the only three Democratic presidential contenders who have not yet said no to a Sept. 23 debate sponsored by the Congressional Black Caucus and Fox News.