U.S. Capitol Police arrested a 27-year-old man on Wednesday who was working as an intern for a Democratic congresswoman, for allegedly doxxing three Republican senators.

Police have charged Jackson A. Cosko, who was working as an intern for Rep. Sheila Jackson Lee, with making personal information public, witness tampering, identity theft, unauthorized access of a government computer, second-degree burglary, and unlawful entry.

Last week, the home addresses, personal phone numbers, and e-mail addresses belonging to three Republican senators — Mike Lee, Orrin Hatch, and Lindsey Graham — were published on their Wikipedia pages. This happened the same day Supreme Court nominee Brett Kavanaugh and the woman accusing him of sexual assault testified before the Senate Judiciary Committee.

Jackson Lee’s office has said Cosko has been terminated and they are cooperating with law enforcement.