Recently retired congressman Ken Buck (R., Colo.) blasted Representative Marjorie Taylor Greene (R., Ga) on Friday over her anti-Ukraine position. 

“Moscow Marjorie has reached a new low,” Buck said during an appearance on CNN. “You know, during the Russian Revolution, [Bolshevik Revolution leader Vladimir] Lenin talked about American journalists who were writing glowing reports about Russia at the time as ‘useful idiots.’”

“And I don’t even think that Marjorie reaches that level of being a useful idiot here,” added Buck, who announced his retirement last month. “She is just mouthing the Russian propaganda, and really hurting American foreign policy in the process.”

Buck’s comments come after Greene discussed news stories and photos showing neo-Nazis in Ukraine during a House Oversight Committee hearing this week and expressed concern that it is seen as misinformation to discuss “the Nazis in Ukraine and their recruitment efforts that go all around the world.”

During the hearing on “Defending America from the Chinese Communist Party’s Political Warfare,” Greene showed a news story with the headline, “Inside a White Supremacist Militia in Ukraine,” and then displayed a photo of what was said to be two Ukrainian soldiers holding their rights hands up as a form of salute.

“This looks like something you’d see out of Hitler’s Germany from Ukraine. And this is something that’s extremely important to talk about,” Greene said when questioning Democrats’ witness, historian Timothy Snyder, an expert on the Holocaust, fascism, the Soviet Union and Central and Eastern Europe.

Snyder pushed back against Greene’s assertions.

“If the chamber is interested in the degree of far-right participation in Ukrainian politics, you can be assured that no far-right party has ever crossed 3 percent . . . in a Ukrainian election,” he said. “So, of course, there are bad people in every country, but by any comparative standard, it is a very small phenomenon.”

“In Russia, on the other hand, the army includes openly Nazi formations . . . the government itself is fascist in character, and it is carrying out a war, which includes deportation of children by the tens of thousands, the open intention of destroying a state, as well as mass torture,” Snyder said. “So if we’re looking for fascism, and if there is anyone who is sincerely concerned about halting fascism or racism, you would wish to halt Russia.”

The House is set to vote on legislation to send aid to Ukraine, Israel, Taiwan, and humanitarian aid to Gaza and other war zones at 1 p.m. ET on Saturday after Democrats joined with many Republicans to clear a procedural hurdle on Friday.

Greene has staunchly argued against foreign aid; after having filed a motion to vacate against House Speaker Mike Johnson last month, Greene reiterated this week that she doesn’t care if “the speaker’s office becomes a revolving door.”

“If that’s exactly what needs to happen, then let it be. But the days are over of the old Republican Party that wants to fund foreign wars and murder people in foreign lands, while they stab the American people in their face,” she said on Steve Bannon’s War Room podcast.