US President-elect Donald Trump promises swift action on immigration

Donald Trump said he can't guarantee that his promised tariffs on key US 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 US involvement in Ukraine, Israel and elsewhere.

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 domestic prices for consumers. He stopped short of a pledge that US an 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.

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 that tariffs are "going to make us rich.

He has pledged that, on his first day in office in January, he would impose 25 per cent 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 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 January 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.

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 US-Mexico border and deport millions of people who are in the US illegally through a mass deportation programme.

I think you have to do it, he said.

He suggested he would try to use executive action to end birthright citizenship under which people born in the US 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.