Still, they come as Mr. Bannon’s adversaries are aggressively seeking his ouster from the White House because of his links to Breitbart News, his feuding with other White House aides and a suspicion that he is the source of leaks about internal chaos inside the West Wing.

Mr. Bannon’s critics intensified their efforts after last weekend’s racial unrest in Charlottesville, Va. Outraged over Mr. Trump’s insistence that “both sides” were to blame for the violence that erupted during a white nationalist rally, leaving one woman dead, human rights activists demanded that the president fire so-called nationalists working in the West Wing. That group of hard-right populists in the White House is led by Mr. Bannon.

On Tuesday at Trump Tower in New York, Mr. Trump refused to guarantee Mr. Bannon’s job security but defended him as “not a racist” and “a friend.”

“We’ll see what happens with Mr. Bannon,” Mr. Trump said.

In the American Prospect article, titled “Steve Bannon, Unrepentant,” the president’s strategist appears eager to lash out at his ideological rivals in the administration, bragging about his ability to defeat those who oppose a more aggressive posture toward China on trade policy.

“That’s a fight I fight every day here,” Mr. Bannon said. “We’re still fighting. There’s Treasury and Gary Cohn and Goldman Sachs lobbying,” he said, referring to Mr. Cohn, the director of the National Economic Council at the White House.