If you read College Insurrection, you know all about the lack of conservative college commencement speakers.

Now the Los Angeles Times is beginning to notice, too.

Kevin Hassett writes.

Commencement speakers: Conservatives need not apply

We have once again entered the college commencement season, which means we’ll soon be reading about uplifting graduation speeches delivered by prominent Americans. Or at least by prominent liberal Americans.

It’s becoming increasingly apparent that conservative speakers aren’t welcome on college and university campuses.

Last month, in the span of a few days, student protests disrupted a presentation by Karl Rove at the University of Massachusetts and one by Rand Paul at Howard University. That same week, former Bush administration official Robert Zoellick withdrew as a commencement speaker at Swarthmore College, while Obama critic Ben Carson did the same at Johns Hopkins.

Zoellick, a Swarthmore alumnus like me, pulled out after being attacked by students who said he’d helped instigate the Iraq war — a preposterous claim considering he was the U.S. trade representative at the time the conflict began. But even Zoellick’s supporters on campus didn’t mount much of a defense. A well-meaning campus newspaper editorial implied that Zoellick should be allowed to speak because he was not one of the truly evil Republicans — like George W. Bush, Dick Cheney, Donald Rumsfeld or Paul Wolfowitz — who rightly should be personae non gratae on campus.

If Zoellick, a moderate gentleman with an impressive record promoting women’s rights as president of the World Bank, can’t speak on a college campus, no Republican can. Indeed, a look at the data suggests that is how things are trending.