Jonathan Martin in the New York Times reports that Donald Trump’s road show is wearing thin and the star is getting crankier.

NORTH CHARLESTON, S.C. — Donald J. Trump was never exactly a happy warrior, but with some of his Republican rivals gaining on him, he is showing clear signs of discontent.

Appearing here on Wednesday afternoon at what was billed as an African-American small business meeting, Mr. Trump used his remarks before a largely white audience to argue that his lead in the polls was not being sufficiently covered, repeatedly complained about the high temperature inside the Ronald Reagan Library at last week’s debate, and lamented that any attacks on Carly Fiorina would be depicted as sexist.

And he did so in a convention center ballroom in which about a third of the seats were unfilled.

This whole “look-at-me-ain’t-I-great” routine and his constant attacks on anyone who doesn’t take him seriously would have a short sell-by date no matter who was pushing it, but with Mr. Trump, who isn’t exactly the most focused public speaker in memory, it loses its appeal even faster.

Being the pitchman that he is, Mr. Trump will come up with something new; he’s already re-started his feud with Fox News because they wouldn’t fawn enough over him, and he’s plowed under the birtherism that got him all the attention six years ago.  But it looks like the crowd is starting to move on to the next sideshow.  Sorry, sad clown.