In Sharpton's case, we might call it "Mighty Mouse Syndrome." His efforts to damage Obama suggest that Sharpton may be creating problems so that he can then solve them. Come to save the day, in other words.
Sharpton's Barack-bashing is more than politics as usual. It is also a historic watershed, the death throe of an old guard. Regardless of whether Obama wins, his candidacy has exposed Sharpton and other race peddlers for what they are -- and threatened their relevancy.
The trick for Sharpton now is how long to withhold his support. If he signs on with Obama too soon, his currency is less valuable. Next month's summit may still be too soon, but at least it gives him time to stall and rally his constituents. To build his product.
While Sharpton may believe that he is much desired by both front-runners, whisperers within some Democratic quarters wouldn't be sorry to see Sharpton attach himself to Clinton. They're banking on another syndrome -- the Ned Lamont Syndrome.
When Lamont defeated Joe Lieberman in Connecticut for the Democratic Senate nomination last year, who joined him on the stage? Al Sharpton and Jesse Jackson, who also is being coy toward Obama -- leaning toward but not yet endorsing him.
Who lost in the general election? Ned Lamont.
Likewise, Clinton may not benefit from being frozen in the frame with Sharpton. Which is to say, Sharpton's magic has become an empty top hat.
The rabbit is on the run, and the cat is out of the bag.