As President Donald Trump prepares to take office for the second time, he brings with him a litany of campaign promises.

Over the next four years, PolitiFact will periodically evaluate the new administration’s progress on Trump’s 2024 campaign promises, just as we did with Barack Obama, Trump during his first term, and Joe Biden.

Proposals in Trump’s second-term agenda include mass deportations of people in the country illegally, tariffs of 10% to 20% on North American allies, a tax cut for everyone, a speedy end to Russia’s war with Ukraine, shutting down the Education Department, expanding the use of the death penalty and defining gender as determined at birth.

MORE FROM POLITIFACT: See Donald Trump’s 75 second-term promises we’re tracking on the MAGA-Meter

The list includes some esoteric promises, such as promoting research into flying cars.

Trump has said he will start moving on his agenda on Day 1.

MORE FROM POLITIFACT: Fact-checking President Donald Trump’s Inauguration Day speech

PolitiFact will continue to use five ratings to assess the development of his promise: Stalled, In the Works, Promise Kept, Promise Broken and Compromise. We base our ratings on measurable outcomes, not intentions or efforts. To receive a Promise Kept, or even a Compromise, a president needs to do more than try to enact their will; the president has to achieve results.

To qualify for our list, Trump himself had to make the promise in speeches, interviews, rallies or on social media during the presidential campaign.

If you think we missed an important pledge to monitor, email us at truthometer@politifact.com.

Here’s a deeper look at five promises of significant interest to the American public.

Trump promised the largest U.S. deportation operation in history

Trump made stopping the influx of migrants into the U.S. and removing people in the country illegally signature policy goals, repeated at virtually every campaign event.

“Upon my inauguration, I will immediately terminate every open borders policy of the Biden administration,” he said in Iowa in 2023. “We’ll carry out the largest domestic deportation operation in American history.”

Immigration experts have told PolitiFact that mass deportation efforts could fail because of concerns over cost and constitutionality. During his first presidency, Trump promised to — but didn’t — deport all immigrants living in the country illegally.

Trump hasn’t provided detailed plans for mass deportations. He has said he would begin by deporting criminals, and use local law enforcement and the National Guard to help. In April 2024, he told Time magazine that building mass deportation camps and using the U.S. military was not out of the question.

Trump wants to add a tariff of 10% to 20% to nondomestic goods

Trump initially said during a Fox Business interview, “I think when companies come in and dump their products in the United States, they should pay automatically, let’s say a 10% tax.” During campaign rallies, he raised that figure as high as 20% (and 60% for China). This would be the most far-reaching of several promises that would continue Trump’s efforts, dating to his first term, to raise tariffs on foreign goods.

Independent groups have estimated that Trump’s proposed tariffs would cost a typical family from $2,000 to $4,000 a year.

Trump promised pardons for Capitol riot defendants. How many remains to be seen.

Trump has been clear about his sympathy for people convicted of crimes and sentenced to prison after storming the U.S. Capitol on his behalf Jan. 6, 2021, aiming to overturn the 2020 election.

In 2023, Trump said in an interview, “We’ll be looking very, very seriously at full pardons because we can’t let that happen. And I mean full pardons. To many, an apology. They’ve been so badly treated.”

But he’s been vague about who would qualify for these pardons; the possibilities include some 900 people charged with misdemeanors and about 600 who faced more serious charges, including violence. Presidents have broad powers to pardon and commute sentences.

Trump wants more tax cuts for people and businesses

The 2017 tax law Trump signed is set to expire, and its extension is a key policy plank for Trump. He has said that he wants to provide a “middle-class, upper-class, lower-class, business-class, big tax cut.”

Trump has not said how this would work. The 2017 law lowered taxes for all income groups, at least initially, but wealthier taxpayers gained disproportionately. A straightforward extension of the 2017 tax cut would not necessarily cut taxes from their present level, unless provisions were added to cut further.

Trump wants to ‘save TikTok’

Although Trump during his first term tried to ban the social media app TikTok, during the 2024 presidential campaign he changed his tune, repeatedly speaking against banning the app. He told reporters last year, “We love TikTok. I’m going to save TikTok.”

TikTok shut down shortly before midnight Jan. 19, following bipartisan passage of a bill that Biden signed in April and the Supreme Court upheld Jan. 17 requiring its sale to an American company in order to remain active in the U.S. On Jan. 19, Trump reiterated that he would seek to delay the shutdown.

PolitiFact senior correspondent Amy Sherman and staff writers Grace Abels, Samantha Putterman and Maria Ramirez Uribe contributed to this report.

This article was originally published by PolitiFact, which is part of the Poynter Institute.