Seated next to Putin on the sidelines of the G20 economic summit in Germany, Trump said it was "an honor" to be with the Russian leader. As journalists were briefly allowed in to witness part of the meeting, Trump said that he and Putin had already held "very, very good talks." He added, "We look forward to a lot of very positive things happening for Russia, for the United States, and for everybody concerned."
With Secretary of State Rex Tillerson at his side, Trump sat in front of an American flag with his hands clasped together in triangle formation. Putin, slightly hunched in his chair, rubbed his fingers together as he listened to Trump address reporters. His foreign minister, Sergey Lavrov, sat nearby.
Trump offered no details about what issues he and the Russian leader had discussed, describing them only as "various things." Putin was similarly vague, telling reporters through a translator that they were discussing international problems and bilateral issues.
Still, the Russian president described the fact that they were meeting as a positive sign in itself, and he said he hoped the meeting would "yield positive results."
"Phone conversations are never enough definitely," Putin said. "If you want to have a positive outcome in bilaterals and be able to resolve most international policy issues, that will really need personal meetings."
Then the leaders shook hands firmly but briefly before reporters were escorted out of the room. Trump did not respond to shouted questions about whether they would discuss Russia's meddling in the U.S. election — a topic lawmakers in Washington have been demanding that Trump raise directly.
The heavily anticipated meeting is being closely scrutinized for signs of how friendly a rapport Trump and Putin will have. Trump's predecessor, President Obama, had notoriously strained ties to Putin, and Trump has expressed an interest in a better U.S.-Russia relationship. But deep skepticism about Russia in the U.S. and ongoing investigations into whether Trump's campaign coordinated with Moscow during last year's election have made a U.S.-Russia detente politically risky for Trump.
The White House said it has scheduled 35 minutes for the meeting.
In a prelude to their formal sit-down, Trump and Putin shook hands and exchanged broad grins earlier Friday in a brief exchange caught on video as a leaders' retreat got under way in Hamburg. A video clip showed Trump outstretching his hand to Putin as officials gathered around a table, then patting Putin's elbow as both men smiled. In another clip, Trump casually patted Putin on the back as they stood side by side.
Trump alluded to the campaign controversy as he started the day with a jab at his vanquished Democratic opponent, Hillary Clinton. He wrote on Twitter that "everyone here is talking" about her campaign chairman's "disgraceful" response after the FBI discovered Democratic Party computers were hacked — a breach later blamed on Russia.
Outside the summit site, anti-globalization protesters were causing problems for first lady Melania Trump, who was kept from joining other leaders' spouses for their own program of events. The first lady's office said local police hadn't cleared her to leave the government guest house where she and Trump were staying because of the protests, in which demonstrators set dozens of cars ablaze.
In the lead-up to the meeting, Trump used a speech in Warsaw on Thursday to voice a list of grievances about Russia. He urged Putin's government to "cease its destabilizing activities in Ukraine and elsewhere and its support for hostile regimes — including Syria and Iran — and to instead join the community of responsible nations in our fight against common enemies and in defense of civilization itself."
But much of the focus — both in Washington and Moscow — will be on whether Trump broaches the issue of Russia's meddling in the election. Putin, a former Russian intelligence agent, is known to come to high-profile meetings like this well-prepared.
In a news conference before he flew to Germany, Trump again refused to unequivocally accept the conclusion by multiple U.S. intelligence agencies that Russia interfered to try to help Trump win last November. Trump said it could have been Russia, but that other countries could have meddled, too.
In Washington, Trump has been under intense pressure from both parties to confront Putin over the election interference. Several senior Democratic U.S. senators served notice in a letter Thursday that Trump would be in "severe dereliction" of his presidential duty if he fails to make clear that Russia's interference in U.S. democracy will not be tolerated.
"The upcoming elections cannot be a playground for President Putin," said Senate Minority Leader Chuck Schumer and others, including the top Democrats on the Intelligence, Armed Services, and Foreign Relations committees.
This is a developing story. Check back for updates.