Former White House chief of staff Reince Priebus said Sunday he doesn’t regret downplaying the Trump Tower meeting between President Trump’s eldest son and Russian officials as a “big nothingburger.”

In his first Sunday show interview since leaving the White House last summer, Priebus stood by his initial comments that the meeting was really about changing Russian adoption policy.

“I still believe what I said in that clip. In that, in fact, it was a meeting about Russian adoption,” Priebus said on NBC’s “Meet the Press” of an interview he did last year on “Fox News Sunday.”

Priebus wasn’t at the June 2016 Trump Tower meeting with Donald Jr., Trump son-in-law Jared Kusner, campaign chairman Paul Manafort and a Russian lawyer. But he publicly dismissed it as a “nothingburger,” saying it was a meeting about adoptions.

“I heard that from members of the family . . . that’s all I ever heard that it was about,” Priebus said.

He added, “I never felt that I was involved in something nefarious.”

Emails from Donald Jr. revealed the pretext for the meeting was getting dirt on Hillary Clinton from the Russians that his dad could use in the presidential campaign.

“I’ve never felt that there was some sort of collusion . . . going on in the West Wing,” said Priebus, who has been interviewed by special counsel Robert Mueller.

Priebus was replaced by retired Gen. John Kelly.