Entire 2016 field descends on New York City ahead of primary

Palm Beach County, Fla. state attorney Dave Aronberg, right, accompanied by assistant state attorney Adrienne Ellis, speaks during a news conference in West Palm Beach, Fla., Thursday, April 14, 2016, where it was announced Donald Trump’s campaign manager Corey Lewandowski won’t be prosecuted for battery after briefly grabbing a female reporter’s arm at a campaign event. (AP Photo/Wilfredo Lee)