President Biden met with Russian President Vladimir Putin in Geneva for less than four hours of talks on Wednesday, a highly anticipated summit that comes as both sides say U.S.-Russia relations have sunk to a new post-Cold War low.

The latest: At a press conference following the conclusion of the summit, Putin called the talks "very constructive' and announced that the U.S. and Russia's respective ambassadors would return to their posts.

• The Russian president was defensive when pressed on key issues by foreign journalists, and repeatedly accused the U.S. of hypocrisy and of causing the deterioration in relations (Full highlights).
• Biden is expected to deliver his own press conference at 1:30 p.m. ET.

Catch up quick: After greeting each other outside Villa La Grange, a mansion overlooking Lake Geneva, the leaders sat for a brief photo op as reporters shouted questions. According to White House pool reports, a chaotic scuffle ensued when security tried to usher reporters out of the room.

• Russian security reportedly started pushing journalists, causing several to trip over the rope separating them from the leaders. Politico's Anita Kumar called it "the most chaotic" scene she's witnessed at a presidential event in nine years. Read the full pool report.
• Biden, Putin, Secretary of State Tony Blinken, and Russian Foreign Minister Sergei Lavrov then held their first closed-door meeting, which concluded at 9:17 a.m. ET after about 90 minutes, according to a White House official.
• The leaders concluded an expanded bilateral meeting — their second and final round of closed-door talks — after about an hour. The session was shorter than expected.

What they're saying: "The U.S. and Russia relations have a lot of issues accumulated that require the highest level meeting and I hope that our meeting will be productive," Putin said before the first meeting, according to a translator.

• "Thank you. As I said outside, I think it’s always better to meet face-to-face,” Biden responded.

The big picture: Neither side believes that substantive agreement will come from the meeting.

• Biden is expected to raise concerns about Russia's election interference, harboring of cyber criminals, crackdown on dissidents, detention of American citizens, and aggression toward Ukraine.
• Many of Biden's predecessors came into office hoping to improve or reset relations with Russia. Biden's goals are more modest: to work together on the few issues, like nuclear security, where interests overlap, and to avoid crises that will cause relations to deteriorate any further.

A senior administration official said the White House is seeking "three basic things":

• "First, a clear set of taskings about areas where working together can advance our national interest and make the world safer."
• "Second, a clear laydown of the areas of America’s vital national interests, where Russian activities that run counter to those interests will be met with a response."
• "And third, a clear explication of the president’s vision for American values and our national priorities."

Who was in the room for the U.S.:

• Secretary of State Antony Blinken,
• National security adviser Jake Sullivan,
• Undersecretary of State for Political Affairs Victoria Nuland,
• National Security Council top Russia adviser Eric Green
• U.S. Ambassador to Russia John Sullivan

Who was in the room for Russia:

• Putin aide Yuri Ushakov
• Foreign Minister Sergei Lavrov
• Kremlin spokesman Dmitry Peskov
• Russian Ambassador to the U.S. Anatoly Antonov
• Chief of the General Staff of Russian Armed Forces Valery Gerasimov
• Deputy Foreign Minister Sergei Ryabkov
• Deputy Kremlin chief of staff Dmitry Kozak
• Special envoy for Syria Alexander Lavrentyev

In photos

This story is developing. Please check back for updates.