Story highlights Sen. Ron Johnson's staff reviewed news articles earlier this year

The Wisconsin Republican said leaks have threatened national security

(CNN) The Republican chairman of the Senate Homeland Security and Governmental Affairs Committee released a new report Thursday warning that the recent influx of classified leaks to the media pose risks to national security.

Wisconsin Sen. Ron Johnson said that under President Donald Trump, "leaks are flowing at the rate of one a day," and his committee found at least 125 news stories "with leaked information potentially damaging to national security," mainly, but not exclusively, related to Russian meddling in the US election, according to articles reviewed by Johnson's staff between January and May.

"But the leak frenzy has gone far beyond the Kremlin and has extended to other sensitive information that could harm national security," the report said. "President Trump's private conversations with other foreign leaders have shown up in the press, while secret operations targeting America's most deadly adversaries were exposed in detail."

CNN was among the more than a dozen news organizations included in the survey, which included The New York Times, NBC, the Associated Press and The Wall Street Journal.

Johnson also sent the findings to Attorney General Jeff Sessions, saying in a letter Thursday he wanted to make the Justice Department "aware of the results of this examination" and hoped it will prove "useful to the relevant investigative entities."

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