Authorities Investigate Threats to Democratic Lawmakers

The Capitol Police and the F.B.I. are investigating remarks reported to have been made by Roger J. Stone Jr., a longtime Republican operative and informal adviser to former President Donald J. Trump, in which he expressed a desire for the deaths of two Democratic lawmakers in the weeks before the 2020 election, a government official familiar with the matter said on Tuesday.

The investigation into Mr. Stone was opened shortly after the website Mediaite released an audio recording in which someone sounding like him can be heard discussing Representative Jerrod Nadler of New York and Representative Eric Swalwell of California, who are among Mr. Trump’s most vocal congressional critics.

“It’s time to do it,” the speaker can be heard saying. “Let’s go find Swalwell. It’s time to do it. Then we’ll see how brave the rest of them are. It’s time to do it. It’s either Swalwell or Nadler has to die before the election. They need to get the message.”

An article by Mediaite accompanying the recording claimed that Mr. Stone made the remarks to an associate, Salvatore Greco, a former New York City policeman, at a restaurant in Fort Lauderdale, Fla. But the recording itself does not make clear whom the speaker was addressing.