Donald Trump’s incoming chief of staff, Reince Priebus, on Monday defended the president-elect’s choice of alt-right media exec Steve Bannon as his top adviser.

Priebus, the Republican National Committee Chairman, supported the former Breitbart News executive chairman and Trump campaign CEO during an appearance on NBC’s “Today” show.

“He’s a guy who is very, very smart, very temperate. Together, we’ve been able to manage a lot of the decision-making. . . . It’s worked very well,” Priebus said.

Priebus also denied allegations that Bannon — who Trump on Sunday named as his chief strategist and senior counselor — shared the racist, anti-Semitic and Islamophobic attitudes that critics say had been the hallmark of the Breitbart Web site under him.

“The guy I know is a guy that isn’t any of those things,” Priebus said.

“Here’s a guy who’s Harvard Business School, 10-year naval officer.”

Trump sparked outrage in July when he hired Bannon during a campaign staff shake-up. A Post article that revealed that his second ex-wife had accused him of domestic violence in 1996.

Mary Louise Piccard also alleged in 2007 divorce papers that Bannon balked at sending their daughters to the Archer School for Girls in Los Angeles and “said that he doesn’t like Jews and that he doesn’t like the way they raise their kids to be ‘whiny brats’ and that he didn’t want [their twin daughters] to go to school with Jews.”

Bannon later denied the allegation and said his daughters were, in fact, attending Archer.

Bannon’s appointment also drew fire on Monday from House Minority Leader Nancy Pelosi (D-Calif.), who called Bannon’s appointment to a critical post “alarming.”

“There must be no sugarcoating the reality that a white nationalist has been named chief strategist for the Trump administration,” she said.