Who is Natalie Harp? Her brother questions her 'unhealthy' relationship with Trump

Natalie Harp, a close aide to Donald Trump, has come under scrutiny after her brother publicly questioned what he described as her "unhealthy" relationship with the president. Harp was among the small number of staff secretly flown with Trump on a military aircraft to avoid a suspected Iranian threat while in Turkey. Her role and proximity to the president have raised questions in the media.