WASHINGTON (AP) — Donald Trump said he can’t guarantee that his promised tariffs on key U.S. foreign trade partners won’t raise prices for American consumers and he suggested once more that some political rivals and federal officials who pursued legal cases against him should be imprisoned.

The president-elect, in a wide-ranging interview with NBC’s “Meet the Press” that aired Sunday, also touched on monetary policy, immigration, abortion and health care, and U.S. involvement in Ukraine, Israel and elsewhere.

WATCH: A look at Trump’s tariffs and the economic consequences for consumer prices and businesses

Trump often mixed declarative statements with caveats, at one point cautioning “things do change.”

A look at some of the issues covered:

Trump hems on whether trade penalties could raise prices

Trump has threatened broad trade penalties, but said he didn’t believe economists’ predictions that added costs on those imported goods for American companies would lead to higher prices for U.S. consumers. He stopped short of a pledge that U.S. households won’t be paying more as they shop.

“I can’t guarantee anything. I can’t guarantee tomorrow,” Trump said, seeming to open the door to accepting the reality of how import levies typically work as goods reach the retail market.

READ MORE: Food prices worried most voters, but they likely won’t see lower grocery bills under Trump

That’s a different approach from Trump’s typical speeches throughout the 2024 campaign, when he framed his election as a sure way to curb inflation.

In the interview, Trump defended tariffs generally, saying they are “going to make us rich.”

He has pledged that, on his first day in office in January, he would impose 25 percent tariffs on all goods imported from Mexico and Canada unless those countries satisfactorily stop illegal immigration and the flow of illegal drugs such as fentanyl into the United States. He also has threatened additional tariffs on China to help force that country to crack down on fentanyl production.

”All I want to do is I want to have a level, fast, but fair playing field,” Trump said.

Trump suggests retribution for his opponents while claiming no interest in vengeance

He offered conflicting statements on how he would approach the justice system after winning election despite being convicted of 34 felonies in a New York state court and being indicted in other cases for his handling of national security secrets and efforts to overturn his 2020 loss to Democrat Joe Biden.

“Honestly, they should go to jail,” Trump said of members of Congress who investigated the Capitol riot by his supporters who wanted him to remain in power.

The president-elect underscored his contention that he can use the justice system against others, including special prosecutor Jack Smith, who led the case on Trump’s role in the siege on Jan. 6, 2021. Trump confirmed his plan to pardon supporters who were convicted for their roles in the riot, saying he would take that action on his first day in office.

WATCH: What Trump’s return to power will mean for Jan. 6 rioters

As for the idea of revenge driving potential prosecutions, Trump said: “I have the absolute right. I’m the chief law enforcement officer, you do know that. I’m the president. But I’m not interested in that.”

At the same time, Trump singled out lawmakers on a special House committee who had investigated the insurrection, citing Rep. Bennie Thompson, D-Miss., and former Rep. Liz Cheney, R-Wyo.

“Cheney was behind it … so was Bennie Thompson and everybody on that committee,” Trump said.

Asked specifically whether he would direct his administration to pursue cases, he said, “No,” and suggested he did not expect the FBI to quickly undertake investigations into his political enemies.

But at another point, Trump said he would leave the matter up to Pam Bondi, his pick as attorney general. “I want her to do what she wants to do,” he said.

Such threats, regardless of Trump’s inconsistencies, have been taken seriously enough by many top Democrats that Biden is considering issuing blanket, preemptive pardons to protect key members of his outgoing administration.

Trump did seemingly back off his campaign rhetoric calling for Biden to be investigated, saying, “I’m not looking to go back into the past.”

Swift action on immigration is coming

Trump repeatedly mentioned his promises to seal the U.S.-Mexico border and deport millions of people who are in the U.S. illegally through a mass deportation program.

“I think you have to do it,” he said.

WATCH: The potential economic impact of Trump’s mass deportation promise

He suggested he would try to use executive action to end “birthright” citizenship under which people born in the U.S. are considered citizens — although such protections are spelled out in the Constitution.

Asked specifically about the future for people who were brought into the country illegally as children and have been shielded from deportation in recent years, Trump said, “I want to work something out,” indicating he might seek a solution with Congress.

But Trump also said he does not “want to be breaking up families” of mixed legal status, “so the only way you don’t break up the family is you keep them together and you have to send them all back.”

Trump commits to NATO, with conditions, and waffles on Putin and Ukraine

Long a critic of NATO members for not spending more on their own defense, Trump said he “absolutely” would remain in the alliance “if they pay their bills.”

Pressed on whether he would withdraw if he were dissatisfied with allies’ commitments, Trump said he wants the U.S. treated “fairly” on trade and defense.

He waffled on a NATO priority of containing Russia and President Vladimir Putin.

Trump suggested Ukraine should prepare for less U.S. aid in its defense against Putin’s invasion. “Possibly. Yeah, probably. Sure,” Trump said of reducing Ukraine assistance from Washington. Separately, Trump has called for an immediate ceasefire.

Asked about Putin, Trump said initially that he has not talked to the Russian leader since Election Day last month, but then hedged: “I haven’t spoken to him recently.” Trump said when pressed, adding that he did not want to “impede the negotiation.”

Trump says Powell is safe at the Fed, but not Wray at the FBI

The president-elect said he has no intention, at least for now, of asking Federal Reserve Chairman Jerome Powell to step down before Powell’s term ends in 2028. Trump said during the campaign that presidents should have more say in Fed policy, including interest rates.

READ MORE: Fed’s independence from politics is vital to interest rate decisions, Powell says

Trump did not offer any job assurances for FBI Director Christopher Wray, whose term is to end in 2027.

Asked about Wray, Trump said: “Well, I mean, it would sort of seem pretty obvious” that if the Senate confirms Kash Patel as his pick for FBI chief, then “he’s going to be taking somebody’s place, right? Somebody is the man that you’re talking about.”

Trump is absolute about Social Security, not so much on abortion and health insurance

Trump promised that the government efficiency effort led by Elon Musk and Vivek Ramaswamy will not threaten Social Security. “We’re not touching Social Security, other than we make it more efficient,” he said. He added that “we’re not raising ages or any of that stuff.”

He was not so specific about abortion or his long-promised overhaul of the Affordable Care Act.

On abortion, Trump continued his inconsistencies and said he would “probably” not move to restrict access to the abortion pills that now account for a majority of pregnancy terminations, according to the Guttmacher Institute, which supports abortion rights. But pressed on whether he would commit to that position, Trump replied, “Well, I commit. I mean, are — things do — things change. I think they change.”

Reprising a line from his Sept. 10 debate against Vice President Kamala Harris, Trump again said he had “concepts” of a plan to substitute for the 2010 Affordable Care Act, which he called “lousy health care.”

He added a promise that any Trump version would maintain insurance protections for Americans with preexisting health conditions. He did not explain how such a design would be different from the status quo or how he could deliver on his desire for “better health care for less money.”

Barrow reported from Atlanta. Associated Press writers Adriana Gomez Licon in Fort Lauderdale, Florida, and Jill Colvin and Michelle L. Price in New York contributed to this report.