In their book Regime Change, Haberman and Jonathan Swan report Harp leaves private notes in the president's personal spaces. One alleged letter reportedly told him 'you are all that matters to me.' The authors also noted that during the 2024 campaign colleagues nicknamed Harp a 'human printer' for carrying a portable printer to supply Trump with hard copies.
Haberman's remarks drew sharp responses: White House spokesman Davis Ingle criticized her publicly, and Georgia Sen. Jon Ossoff questioned the president's closeness to Harp at a rally. White House communications director Steven Cheung later lashed out at Ossoff online without addressing the specific lines of criticism.