President-elect Donald Trump says he's a "very sober" person and says he'll conduct himself "in a very good manner" as the nation's president.

But the combative billionaire added in an interview aired Sunday night on CBS's "60 Minutes" that his manner "depends on what the situation is."

The president-elect was asked in the interview conducted Friday if he's going to use the same, sometimes divisive rhetoric he used during the campaign. He replied that "sometimes you need a certain rhetoric to get people motivated."

Trump spent much of the day on Twitter bragging about one-time GOP critics who have congratulated him. He also revived his feud with The New York Times.

Trump also demanded that any of his supporters who are harassing people or destroying property to "stop it."

"I would say don't do it, it's terrible," Trump said. "I am so saddened to hear that. And I say 'Stop it.' If it helps, and I will say this, and I'll say it right to the cameras. Stop it."

He also had a message for people protesting him and his campaign message across the country.

I would tell them, 'Don't be afraid,' " he said, adding that he believes they could be afraid only "because they don't know me." He also believes some in the crowds are professional protesters.

Trump also said he's giving up the president's annual salary of $400,000.

Trump said he had not been aware of the amount. He said he's required by law to take $1.

The billionaire says of the rest of the money, "I'm not going to take the salary."

Trump also said that he's willing to deport or incarcerate 2 million to 3 million people in the country illegally who "are criminal and have criminal records, gang members, drug dealers."

Such a promise was directly at odds with House Speaker Paul Ryan, who told CNN's "State of the Union" on Sunday that "we are not planning on erecting a deportation force." Ryan said "I think we should put people's minds at ease" on mass deportation because the top priority is really border security.

Trump campaigned on a vow to build a wall and make Mexico pay for it. He also has insisted he will deport all 11 million people in the country illegally, with exceptions.