US president-elect Donald Trump and President Joe Biden have met for the first time since Trump won the presidential election last week and both men promised a smooth transfer of power in January.
The two leaders sat side by side before a roaring fire in the Oval Office, a peaceful scene that belied tensions between them.
Biden defeated Trump in the 2020 election but dropped out of the 2024 race in July after a disastrous debate with the Republican Trump.
Biden handed his candidacy to vice president Kamala Harris, who lost the election.
"We're looking forward to having, like we said, a smooth transition, do everything we can to make sure you're accommodated, what you need," he said.
"Welcome, welcome back."
Trump, who takes over on 20 January, said: "Politics is tough, and it's many cases not a very nice world, but it is a nice world today, and I appreciate very much a transition that's so smooth it'll be as smooth as it can get and I very much appreciate that, Joe."
Reporters shouted questions but were quickly ushered out.
No issues separating the two men in their discussion
It was a sharp contrast to the criticism the two men have hurled at each other for years.
Their respective teams hold vastly different positions on policies, from climate change to Russia to trade.
Biden, 81, has portrayed Trump as a threat to democracy, while Trump, 78, has portrayed Biden as incompetent.
Trump made claims of widespread fraud in the 2020 election even though his own attorney-general, recounts, and investigations found no evidence of that.
Trump's motorcade rolled through the heavily guarded White House gate, and the former and future Republican president was greeted in the Oval Office by Biden, a Democrat who defeated him in the 2020 election.
Outside on the White House driveway, a massive crowd of journalists gathered in anticipation of the big event.
Donald Trump celebrates win with Republican allies
Trump celebrated his victory earlier in the day with Republicans in the House of Representatives, who have a good chance of maintaining control of the chamber as the 5 November election results trickle in.
"Isn't it nice to win? It's nice to win. It's always nice to win," Trump said.
"The House did very well."
Outside the White House gates, signs of the impending power transfer were evident with construction already underway for the stands for VIP guests to sit during the parade that will take place after Trump is inaugurated.
Although Biden intended to use the meeting to show continuity, the transition itself is partially stalled.
Trump's team, which has already announced some members of the incoming president's cabinet, have yet to sign agreements that would lead to office space and government equipment as well as access to government officials, facilities, and information, according to the White House.
"The Trump-Vance transition lawyers continue to constructively engage with the Biden-Harris Administration lawyers regarding all agreements contemplated by the Presidential Transition Act," said Brian Vance, a spokesman for the Trump transition, referring to the law that governs the transfer of power.
