House Republicans are calling on the Department of Justice to investigate New York City Mayor Zohran Mamdani's administration following reports that one of his top aides sought to arrange a meeting with Iran's ambassador to the United Nations while the Trump administration continues to negotiate with Tehran.

Rep. Addison McDowell, R-N.C., led a letter Thursday to Acting Attorney General Todd Blanche requesting a probe into whether the mayor's office violated the Logan Act, which prohibits unauthorized Americans from negotiating with foreign governments involved in disputes with the United States.

The request follows a City Journal report that New York City International Affairs Commissioner Ana María Archila scheduled a July 7 meeting with Iranian U.N. Ambassador Amir-Saeid Iravani. The meeting was canceled after the State Department learned of it and intervened, according to the report.

"We write with concern about the recent actions of Mayor Zohran Mamdani’s Administration," McDowell wrote. "Last week, media outlets began to report Commissioner Ana María Archila, the head of the New York City Mayor’s Office for International Affairs, had scheduled a July 7 meeting with the Islamic Republic of Iran’s ambassador to the United Nations, Amir-Saeid Iravani."

McDowell was joined by Reps. Lauren Boebert, R-Colo.; Earl "Buddy" Carter, R-Ga.; Pat Fallon, R-Texas; Randy Fine, R-Fla.; Clay Higgins, R-La.; Pat Harrigan, R-N.C.; Wesley Hunt, R-Texas; Anna Paulina Luna, R-Fla.; Richard McCormick, R-Ga.; Max Miller, R-Ohio; Riley Moore, R-W.Va.; Pete Sessions, R-Texas; Claudia Tenney, R-N.Y.; and other House Republicans.

According to City Journal, Archila and two other senior city officials were expected to attend the meeting, though its purpose was never publicly disclosed. The outlet reported Archila allegedly did not notify Mamdani beforehand and was reprimanded after federal officials objected.

"As you know, negotiations with Iran are in a critical stage," the lawmakers wrote. "Given its timing, we believe this proposed meeting may have presented significant national security risks."

The lawmakers argued the incident warrants a federal investigation.

"Mayor Mamdani’s and Commissioner Archila’s actions create a clear conflict of interest with the United States’ strategic military actions in Iran and across the Middle East, warranting further examination by the Department," the letter said.

The Republicans added, "... [W]e understand the vulnerable nature of continued peace negotiations. For that reason, we believe that a formal investigation is necessary to determine whether Commissioner Archila, acting on behalf of Mayor Mamdani, engaged in any unlawful activity or communication with the Islamic Republic of Iran."

A spokesperson for the Mayor's Office for International Affairs told City Journal, "This meeting did not and will not take place."

Mamdani said the proposed meeting resulted from a "request that came in" to the office, "not one that originated from the office," according to The New York Times. He added that his administration is updating its protocol for handling meeting requests.

The State Department told the Times it was "unconscionable" for a New York City official to pursue such a meeting under the current circumstances and said it appreciated that it was canceled.

In a statement to Breitbart News, McDowell said, "undermining national security has serious risks, and the Mayor of New York should know better than to meddle in our foreign affairs during the height of negotiations between the White House and Iran."

"The Department of Justice needs to look into Mamdani’s office and ensure they are not acting as rogue agents to the detriment of America’s national security," he added. "Mamdani does not speak for America."