US Senator-elect Elizabeth Warren plans to appoint three campaign officials to top positions in her Senate office, accord­ing to an official close to her.

According to the official, Mindy Myers, 36, Warren’s campaign manager and a former chief of staff to Senator Sheldon Whitehouse of Rhode Island, will become chief of staff; Dan Geldon, 30, a senior adviser in the campaign, will become deputy chief of staff; and Roger Lau, 35, Warren’s campaign political director, will serve as state director, running her Boston office and other Massachusetts offices.