Federal authorities arrested a New Hampshire man, charging him with threatening to kill Vivek Ramaswamy and his supporters, the Justice Department said on Monday.
Prosecutors said Tyler Anderson, a 30-year-old from Dover, threatened to kill Mr. Ramaswamy, a businessman and Republican presidential candidate, and attendees of a campaign event planned on Monday in nearby Portsmouth. The threats were made as replies to an automated campaign message inviting Mr. Anderson to attend the event, according to images of the texts included in court documents. His messages implied that the threat would be carried out with a firearm.
Mr. Anderson was arrested on Saturday after federal agents tracked the texts to his phone and his home address, according to an affidavit filed in federal court in New Hampshire. The police also seized several firearms and recovered the threatening text messages from a deleted folder on Mr. Anderson’s phone.
In an interview with an F.B.I. agent after his arrest, the affidavit continued, Mr. Anderson acknowledged sending the threats, adding that he had also sent similar messages to other campaigns. Another federal agent discovered such texts sent to another presidential campaign. Mr. Anderson was charged with one count of transmitting threats.
The Dover Police Department also told federal agents that they “had an interaction with Anderson on Oct. 20,” and reported other encounters in 2022 and 2011. The department declined to provide more information on these episodes, referring questions to federal prosecutors.
In a statement on Monday, the Ramaswamy campaign thanked law enforcement “for their swiftness and professionalism in handling this matter.”
The statement then criticized the news media, “deranged voices” and “left-wing cranks,” accusing the groups of inciting violence against Republicans.
Mr. Anderson faces a maximum of five years in prison, three years of supervised release and a fine of $250,000 if convicted. He appeared in federal court on Monday in Concord, the state capital, before returning to temporary detention. Additional hearings in the case are scheduled for Thursday.
Alain Delaquérière contributed research.