 Their Iowa caucuses will be first in the nation again in 2028. Radio Iowa's O.K. Henderson reports. Iowa GOP Chairman Jeff Kaufman was chosen to deliver the nominating speech for former President Trump and Iowa Attorney General Brenna Byrd was chosen to preside over the VP's nomination at the party's national convention. Bobby Kaufman, the son of the state party's chairman, is a senior advisor to Trump's re-election campaign.