A former congressional staffer has pleaded guilty to posting online the addresses and numbers of five Republican senators who backed Brett Kavanaugh’s Supreme Court nomination. Jackson Cosko, 27, pleaded guilty to five federal offenses, and could face a prison term of at least 30 months. The offenses included making public restricted personal information, computer fraud, witness tampering and obstruction of justice. According to court records, Cosko became angry while watching coverage of Kavanaugh’s confirmation hearing, and, acting on that anger, published the personal home addresses and telephone numbers of Republican senators Lindsey Graham of South Carolina, Mike Lee of Utah and Orrin Hatch of Utah on Wikipedia.

Cosko was formerly employed as a computer systems administrator in the office of Sen. Maggie Hassan, D-N.H. He was fired from the job in May 2018 for failing to follow office procedures. “We did not have reason to believe that he posed a risk,” a spokesman for Hassan said last year. But Cosko was angry over the termination, according to court records, and began an “extensive... data theft scheme” by burglarizing Senator Hasan’s office. Cosko copied data from Hassan’s computers, including the “contact information for numerous sitting U.S. senators.”