Jackson Cosko, the Democratic staffer accused of “doxxing” Republican senators during the Kavanaugh confirmation fight, was caught after he sneaked into a Senate Democrat’s office earlier this week and tried to use one of their computers, police said in an affidavit made public Thursday. ...Police said he had worked for a Senate office before, though he was pushed to resign earlier this year. A spokesman for Sen. Maggie Hassan, New Hampshire Democrat, confirmed she had employed him and he had been asked to resign “for failing to follow office procedures.”