Donald Trump told Republican supporters at a campaign rally in Iowa that the U.S. war with Iran was not over because he wanted to be "nice" and "save as many lives as possible," but warned that "at some point we're going to have to give them the 'hammer'." He also reiterated that the U.S. had "destroyed" Iran's nuclear enrichment capabilities and said the war would "end very quickly." Additionally, Trump described rising gasoline prices as a "small price" for U.S. security and predicted that prices would "come down very quickly."