 Jeff Kaufman, the Iowa Republican chairman, doing the honors as the roll call vote began at the Republican National Convention in Milwaukee today. Trump's son, Eric Trump, cast the delegate votes needed for the state of Florida. They put his father over the top with more than 1,215 votes needed to clinch the nomination. Trump's nomination comes less than 48 hours after a gunman took shots at the former president during a rally in Butler, Pennsylvania, Saturday.