Donald Trump Jr. also called out the mayor for leaving New York City while its “education, infrastructure etc rots under his ‘progressive’ stewardship!”

De Blasio will travel with three staffers and the cost of the trip will be covered by event organizers, Phillips told The New York Daily News. 

Thousands of anti-capitalist protesters clashed with police in Hamburg on Thursday as Trump and other world leaders arrived for the summit. German police said 29 protesters were detained and 111 police officers were wounded, including three officers who were hospitalized. The protests are expected to continue through the weekend.