Elon Musk worked illegally on a student visa and faced concerns he would be “deported” when he started life in the United States, a bombshell report revealed Saturday.

The billionaire South African-born immigrant also admitted in an email that he “had no legal right to stay in the country” when he ditched his studies and founded a company which he later sold for more than $300 million, The Washington Post reported. His brother was also here illegally, committing what one expert called “fraud upon entry.”

The revelation comes after Musk, the Tesla, X, SpaceX and Starlink CEO went all-in on supporting Donald Trump and repeatedly accused Democrats of trying to flood the country with immigrants who cross the border illegally, a conspiracy theory which has become mainstream in the Republican party. Bloomberg called him “X’s biggest promote of anti-immigrant conspiracies.”