Donald Trump collects the best enemies – now including a Saudi billionaire prince who funds Islamist advocacy in American universities.

.@realDonaldTrump You are a disgrace not only to the GOP but to all America. Withdraw from the U.S presidential race as you will never win. — الوليد بن طلال (@Alwaleed_Talal) December 11, 2015

Reportedly the richest of many Saudi Princes, Alwaleed Bin Talal says Trump should quit the 2016 election as he’s “a disgrace not only to the GOP but to all America.”

His demand follows Trump’s call for a temporary ban on Muslim migration, since the San Bernardino massacre by two Muslims — an immigrant and a son of an immigrant.

The prince is supposedly worth roughly $24.8 billion — not as much as Trump’s other billionaire critics, Mark Zuckerberg, for example — but enough to be comfortable when socializing with Bill Gates, Michael Bloomberg or Carlos Slim, the Mexican part-owner of the New York Times.

The prince has already donated tens of millions of dollars to set up pro-Islam advocacy centers at several U.S. universities, including Harvard and Georgetown.