Carl Paladino, Donald Trump’s New York co-chair, on Thursday said that President Obama is not a Christian, arguing that the President’s foreign policy proves he’s a Muslim.

“In the mind of the average American, there is no doubt he is a Muslim,” Paladino told the New York Observer in a phone interview. “He is not a Christian.”

“Look at what he’s done with Iran, what he’s done with the Sunni-Shia thing over in Iraq and Iran, and with ISIS,” he added.

Obama’s Christian faith has been questioned by conservatives for years, despite the fact that he was a member of the Trinity United Church of Christ in Chicago before taking office and that he has attended church with his family since then. The Observer, which is owned by Trump’s son-in-law Jared Kushner, noted this.

Paladino was not the only Trump supporter to revive a conspiracy theory about Obama this week. Former Trump campaign manager Corey Lewandowski on Tuesday raised questions about Obama’s Harvard transcripts, suggesting that Obama did not release the records to hide that he was not born in the United States.