Tech billionaire Elon Musk faced accusations of censorship Friday from fellow conservatives after several prominent right-wing accounts who had criticized Musk’s views on immigration said that they subsequently lost access to premium features on Musk’s social media app, X.

Less than a month before Donald Trump returns to office, two of his most ardent allies have plunged into a fierce online debate over immigration, specifically the government’s visa program that allows American companies to hire so-called “highly skilled” foreign workers.

The world’s richest man is “misjudged and certainly misinformed” about the British government’s handling of “grooming gangs,” U.K. lawmakers say.