MIAMI, FL - SEPTEMBER 16:  MIAMI, FLORIDA- SEPTEMBER 16: Republican National Committee Chair Reince Priebus speak during a US Republican presidential nominee Donald Trump a campaign event at James L. Knight Center, September 16, 2016. During a press conference earlier in Washington, DC. at the Trump International Hotel, Donald Trump finalliy admitted that U.S. President Obama was born in the United States.  (Photo by Johnny Louis/FilmMagic)