July 19, 2016 3:28 pm NY Delegation's Vote Officially Makes Trump as GOP Nominee Donald Trump, Jr. led the New York delegation in pledging its votes for his father, Donald J. Trump, clinching him as the official Republican nominee for president. US & World Videos 2:30 Dream for All housing bill vetoed 2:08 Jennifer Lopez stuns at first red carpet after Ben Affleck split 3:34 Halloween Horror Nights is back at Universal Studios Hollywood 0:58 Rare 1787 copy of US Constitution is up for auction and it could be worth millions 0:52 What is the Guardian Cap on football helmets?