In a wide-ranging, three-part interview set to broadcast Sunday, President Trump revealed that U.S. troops will remain in Iraq to "watch Iran," and charged that Democratic House Speaker Nancy Pelosi is "very bad for our country" and "doesn't mind human trafficking" at the border, according to an advance transcript of his remarks.

Speaking ahead of Super Bowl LIII at the Mercedes-Benz Stadium in Atlanta, Ga., Trump also told CBS News' "Face the Nation" that the NFL's ratings have been "terrific" lately because the players "haven't been kneeling" during the national anthem -- and that "a lot of people in the NFL have been calling and thanking me" for spearheading the passage of a sweeping, bipartisan criminal justice reform bill last year.

"You know, there have been plenty national emergencies called," Trump told anchor Margaret Brennan. "And this really is an invasion of our country by human traffickers." (“I think there’s a good chance we’ll have to do that," Trump said last week, referring to declaring a national emergency.)

"I think that she was very rigid -- which I would expect -- but I think she is very bad for our country," Trump said. "She knows that you need a barrier. She knows that we need border security. She wanted to win a political point. I happen to think it's very bad politics because basically she wants open borders. She doesn't mind human trafficking or she wouldn't do this."

Trump continued: "She can keep playing her games, but we will win. Because we have a much better issue. On a political basis, what she's doing is -- I actually think it's bad politics, but much more importantly it's very bad for our country."

Trump added in the Sunday interview that keeping a small force in Afghanistan, where he has also vowed to draw down troops, remained possible. And in Iraq, Trump said, "we might as well keep" a base of operations there.

"And one of the reasons I want to keep it is because I want to be looking a little bit at Iran, because Iran is a real problem," Trump said.