WASHINGTON

While the cool cat’s away, the Hillary mice will play.

As Barack Obama was floating in the pool with his daughters the last few days in St. Thomas, some Clinton disciples were floating the idea of St. Hillary as his vice president.

She can’t win without him, said one Hillary adviser, and he can’t win without her.

They’re stuck with each other.

It’s one of my favorite movie formulas, driving the dynamics in such classics as “A Few Good Men,” “The Big Easy” and “Guys and Dolls”: Charming, glib guy spars and quarrels with no-nonsense, driven girl, until they team up in the last reel. He spices up her life, and she stiffens his spine. And soon they hear the pitter-patter of little superdelegate feet, who are thrilled not to be pulled in two directions anymore.

And everybody’s happy. Or are they?

A couple of weeks ago, when Hill and Bill mentioned the possibility of a joint ticket, it was an attempt to undermine Obama and urge voters and superdelegates to put Hillary on top; the implication was that this was the only way Democrats could have both their stars, and besides, it was her turn. The precocious boy wonder had plenty of time.