A former adviser to Donald Trump on Wednesday endorsed racial profiling and warned that mainstream Muslim American organizations are waging a covert war of cultural subversion against the United States.

Sebastian Gorka teaches at Marine Corps University and advises law enforcement and national security officials on terrorism and irregular warfare. Last fall, he was paid $8,000 for policy consulting with the Trump campaign. On Wednesday, he spoke at the Family Research Council, a social conservative advocacy group, touting his new book, Defeating Jihad: A Winnable War.

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Gorka boasts that he regularly advises law enforcement on ISIS and terrorism. According to the website of his company, Threat Knowledge Group, he also advises the Office of the Director of National Intelligence, FBI, Army, and Defense Department Special Operations Command.

On Wednesday, he wrongfully claimed that 98 percent of terrorists are Muslims. Since 9/11, right-wing extremists have killed almost twice as many Americans as Muslim terrorists have.

The Intercept asked Gorka about advising Trump. He cautioned that Trump has a “steep learning curve” on national security but said Trump “is no fan of political correctness, he knows we are at war, and he wants to win. And my golly gosh isn’t that a refreshing attitude!”

The Family Research Council also played host to anti-Muslim speakers during the 2012 presidential election. But the 2016 race has elevated anti-Muslim conspiracy theorists to new platforms — from Gorka working as a policy consultant for the Trump campaign to a Senate hearing on Tuesday where Sen. Ted Cruz, R-Texas, invited a witness who testified that Muslim advocacy organizations are front groups for Hamas, and that the FBI and Department of Homeland Security had been infiltrated by a “global jihadi movement.”