A trio of top Democrats is requesting administration officials brief their committees by noon Thursday on what happened in President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE’s private meeting with Russian President Vladimir Putin.

The ranking members of the House Foreign Affairs, Armed Services and Intelligence committees on Tuesday made the request in a letter to Secretary of State Mike Pompeo Michael (Mike) Richard PompeoTreasury sanctions individuals, groups tied to Russian malign influence activities Navalny released from hospital after suspected poisoning Overnight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers MORE, Defense Secretary James Mattis James Norman MattisBiden courts veterans amid fallout from Trump military controversies Trump says he wanted to take out Syria's Assad but Mattis opposed it Gary Cohn: 'I haven't made up my mind' on vote for president in November MORE and Director of National Intelligence Dan Coats Daniel (Dan) Ray CoatsFBI chief says Russia is trying to interfere in election to undermine Biden The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump, Biden renew push for Latino support Former Intel chief had 'deep suspicions' that Putin 'had something on Trump': book MORE.

“Democrats and Republicans alike were shocked to watch President Trump publicly side with Russia over its responsibility for interfering in the 2016 U.S. elections and directly contradict the Intelligence Community’s assessment,” Reps. Eliot Engel Eliot Lance EngelHouse panel halts contempt proceedings against Pompeo after documents turned over Engel subpoenas US global media chief Michael Pack The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep MORE (D-N.Y.), Adam Smith David (Adam) Adam SmithWhen 'Buy American' and common sense collide Overnight Defense: Marine Corps brushes off criticism of Marines' appearance in GOP convention video | US troops injured in collision with Russian vehicle in Syria | Dems ask for probe of Vindman retaliation allegations Democrats press Pentagon watchdog to probe allegations of retaliation against Vindman brothers MORE (D-Wash.) and Adam Schiff Adam Bennett SchiffPelosi, Democrats unveil bills to rein in alleged White House abuses of power Chris Matthews ripped for complimenting Trump's 'true presidential behavior' on Ginsburg Trump casts doubt on Ginsburg statement, wonders if it was written by Schiff, Pelosi or Schumer MORE (D-Calif.) wrote in the letter.

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“But we also have profound concerns over what was said privately and would appreciate the opportunity to discuss with each of you the national security matters that were discussed, including Russia; its illegal occupation and attempted annexation of Crimea; ongoing conflict in eastern Ukraine; ongoing sanctions policy towards Russia; Syria; the U.S. commitment to NATO and Article 5; counterterrorism cooperation; strategic stability and arms control; and China.”

Trump’s summit with Putin in Helsinki last week started with a private meeting in which the only other people in the room were each leader’s interpreter.

Pompeo is scheduled to testify Wednesday before the Senate Foreign Relations Committee, where he is expected be grilled about what happened at the summit.

U.S. officials have so far said little on what happened in that meeting. But Moscow has released several statements, including that the leaders agreed on military cooperation in Syria.

Last week, Coats told an audience at the Aspen Security Forum that, “I don't know what happened in that meeting.”

On Tuesday, Mattis said the U.S. military has not changed its stance on Russian forces in Syria.

In their letter, the lawmakers noted that Cabinet officials appear not to have been briefed on the meeting and said Congress must be informed of any potential deals.

“Since the meeting, Congress has received no notification from the White House or Executive Branch about the topics of the meeting or any purported deals or agreements reached on behalf of the United States,” they wrote. “It also appears that President Trump’s cabinet has not been briefed on the private meeting, and Congress must be made aware of some of the potential deals or agreements that Russia claims were struck.”