Wednesday, April 6, 2016, beginning at 7:00 PM EDT, GOP Presidential candidate Donald Trump will hold a campaign rally in Bethpage, NY at Grumman Studios. With two weeks to go until the New York primary on April 19, this will be Mr. Trump’s first campaign event in his home state of New York. Bethpage is a hamlet located on Long Island within the Town of Oyster Bay in Nassau County, New York, United States, as well as a census-designated place with borders slightly different from those of the hamlet. Population: 16,429. Grumman Studios