The initiative hadn’t been planned to include xAI’s Grok model as recently as March, the former Pentagon employee said.

People with congestive heart failure, undergoing treatment for schizophrenia or who have a history of paraphilic disorders will no longer be eligible for a medical waiver to serve in the military, according to new rules issued by the Pentagon on Tuesday.

Leading the review has been Elbridge Colby, the Pentagon's Under Secretary of Defense for Policy, who has previously expressed concern that the U.S. would lose submarines to Australia at a critical time for deterrence against China. The congressmen copied their letter to him.

Justin Fulcher confirmed to Fox News Digital that he voluntarily resigned after six months as a senior advisor to Defense Secretary Pete Hegseth, calling his service “inspiring."

As a direct report to the deputy secretary of defense, Guetlein has authority to bypass competitive hiring procedures as he builds his Golden Dome team.

Justin Fulcher, an adviser to Defense Secretary Pete Hegseth, said in a statement that he had planned to work in the federal government for only six months.

Pentagon press releases say 20,000 federal troops have deployed to support ICE across the country. The real number may be markedly higher.