Donald Trump will return to the White House, he has promised action on issues including immigration, the economy and the war in Ukraine.
He looks set to enjoy much support for his political agenda in Congress after his Republican Party regained control of the Senate.
But in some cases, he has given few details about how he might achieve his goals.
Asked in 2023 by Fox News whether he would abuse his power or target political opponents, he replied that he would not, "except on day one."1) Deportation of undocumented immigrants
During the campaign, Trump promised the largest mass deportations of undocumented immigrants in US history.
Experts have told the BBC that deportations on the scale promised by Trump would face huge legal and logistical challenges - and could slow economic growth.
Exit poll data suggested the economy was a key issue for voters. Trump has promised to "end inflation" - which soared to high levels under President Joe Biden before falling again. But a president's power to directly influence prices is limited.
He has also promised sweeping tax cuts, extending his review from 2017. He has proposed making tips tax-free, scrapping tax on social security payments and cutting corporate tax.
3) Reducing climate regulations
During his first presidency, Trump removed hundreds of environmental protections and made America the first nation to withdraw from the Paris climate accord.
He has pledged to increase fossil fuel production in the US - vowing to "drill, drill, drill" on day one in favor of renewable energy sources like wind power.
He wants to open up areas such as the Arctic wilderness to oil drilling, which he argues would lower energy costs - although analysts are skeptical.Trump has criticized the tens of billions of dollars spent by the US to support Ukraine in its war with Russia - and has vowed to end the conflict "within 24 hours" through a negotiated settlement.
He has not said what he thinks either side should give up. Democrats say the move would embolden President Vladimir Putin.
5) No ban on abortion
In 2022, the nationwide constitutional right to abortion was struck down by the Supreme Court, which had a majority of conservative justices after Trump's first presidency.
Reproductive rights became a major campaign theme for Harris, and several states passed measures to protect or expand abortion rights on Election Day.
6) He will pardon some protesters of January 6
Trump has said he will "release" some of those convicted of crimes during the riots in Washington DC on January 6, 2021, when his supporters stormed the Capitol building in an attempt to prevent Joe Biden's 2020 election victory.
He has worked to downplay the riots and recast the hundreds of supporters who were sentenced as political prisoners.
He goes on to say that many of them have been "wrongfully imprisoned", although he has admitted that "two of them have probably got out of hand".Trump has vowed to fire "within two seconds" of taking office the veteran prosecutor leading two criminal investigations against him.
Special counsel Jack Smith has sued Trump over alleged attempts to sway the 2020 election and his alleged misuse of classified documents.