Members of Congress from both sides of the aisle were upset by revelations that President Donald Trump may have revealed highly classified information during a meeting with the Russian ambassador last week.

On Monday, The Washington Post reported that Trump had disclosed “code word” intel to Ambassador Sergey Kislyak, “jeopardized a critical source of intelligence on the Islamic State” and harmed U.S. ties with an unnamed ally.

Sen. Chuck Schumer (D-N.Y.) characterized the report as “disturbing” and said, if true, such behavior would put “at risk the lives of Americans and those who gather intelligence for our country.”

If the Washington Post report is true, it is very disturbing. Revealing classified information at this level is extremely dangerous. — Chuck Schumer (@SenSchumer) May 15, 2017

House Minority Leader Nancy Pelosi (D-Calif.) called the leak a “very serious matter” during a CNN town hall on Monday. She tweeted that if Trump “blew a classified source unwittingly, it is a problem. If it happened intentionally, the stakes are even higher.”

There’s a saying in the intelligence community: “Loose lips can sink ships.” #PelosiTownHall pic.twitter.com/BLZGyJum4p — Nancy Pelosi (@NancyPelosi) May 16, 2017

Sen. Cory Booker (D-N.J.) said such a revelation “breaks the trust of our allies and puts lives at risk.”

“If literally anyone else did what President Trump is reported to have done, there would be an immediate criminal investigation,” Booker stated.

.@CoryBooker statement: If t were anyone other than Trump, "...there would be an immediate criminal investigation... " pic.twitter.com/dsbUPSBYYc — Nick Corasaniti (@NYTnickc) May 15, 2017

Sen. Mark Warner (D-Va.), the top Democrat on the Senate Intelligence Committee, described Trump’s alleged behavior as a “slap in the face to the intel community.”

Rep. Frederica Wilson (D-Fla.) went one step further.

“I believe that the president is desperate for attention and needs psychological help,” she said in a statement provided to CBS Miami.

Other Democrats also chimed in:

This is profoundly troubling. Why would President Trump give our highly classified information to the Russians? https://t.co/uFKr4ZOId4 — Al Franken (@alfranken) May 16, 2017

President Trump compromised the security of the American people to cozy up to the Kremlin. When will @HouseGOP say enough is enough? https://t.co/izKBgCoAB7 — Rep. Barbara Lee (@RepBarbaraLee) May 16, 2017

Our intelligence community relies on trust - carelessly disclosing classified info betrays our allies & service members. pic.twitter.com/ygWAEePeYw — Jim Langevin (@JimLangevin) May 16, 2017

(1/3) If true, this report is very troubling. — Senator Angus King (@SenAngusKing) May 16, 2017

On the Republican side, Rep. Bob Corker (R-Tenn.) said the White House has “to do something to bring itself under control and in order.”

“Obviously, they’re in a downward spiral right now, and they’ve got to figure out a way to come to grips [with] all that’s happening,” Corker said.

House Speaker Paul Ryan (R-Wis.) had a more subdued reaction. Through a spokesperson, his office said “protecting our nation’s secrets is paramount,” then requested a “full explanation of the facts.”

This statement from Speaker Paul Ryan's office puts the onus on the administration to explain what happened here pic.twitter.com/5t2oKP3IRr — Abby D. Phillip (@abbydphillip) May 15, 2017

Sen. John McCain (R-Ariz.) called the report “disturbing,” but also noted to The Associated Press that the president “does have the right to do that.”

Other GOP lawmakers expressed similar thoughts, reiterating concerns about the cozy relationship the Trump administration seems to have with Russia.

Putin + the Russian regime are dangerous players in the global arena. They're not our allies + can't be trusted w sensitive, classified info — Mario Diaz-Balart (@MarioDB) May 16, 2017

Classified intelligence is classified for a reason and must be respected and protected as such at all levels of government. — Frank LoBiondo (@RepLoBiondo) May 15, 2017