A federal judge on Wednesday sentenced a former Democratic aide to four years in prison for hacking Senate computers, using spy devices and “doxxing” Republicans.

Jackson Cosko — a former aide to Democratic New Hampshire Sen. Maggie Hassan, Democratic California Sen. Barbara Boxer and Democratic Texas Rep. Sheila Jackson Lee — stole the entire contents of Hassan’s computer systems in October 2018 and published the private information of Republicans, including home addresses and cell phones. He hoped to intimidate them over Justice Brett Kavanaugh’s Supreme Court nomination.

The same day, prosecutors charged a second Democratic aide with computer fraud and tampering with evidence for her role as an accomplice to Cosko.