President Trump has relieved George Gigicos, the man tasked with organizing all of his post-election campaign events, following a less-than-packed rally in Phoenix, Ariz., last week, according to a report Monday evening.

Gigicos, the former White House scheduling and advance director, set up the Tuesday evening at the Phoenix Convention Center as a contractor for the Republican National Committee.

Trump was visibly upset before he took the stage last night after he saw on a TV monitor the large multipurpose room was half-full. The space was divided by a wall and most of the audience stood, while a portion was off to the side.

A city of Phoenix spokesperson estimated 10,000 people were in attendance, though it likely would have been higher if the entire room was used.

While at the event, Trump told his long-time security aide Keith Schiller to tell Gigicos he was done organizing rallies, according to Bloomberg.

Gigicos actually stepped down from his White House job on July 31 and had been working for the RNC and Trump's re-election campaign, as well as running his own consulting business in that time.