Campaigning in Iowa, former President Donald Trump attacked Florida Gov. Ron DeSantis as an enemy of corn-based ethanol. Trump headlined his largest Iowa campaign event in nearly four months on Friday with a speech to more than 1,000 in an arena in Council Bluffs. Later, he headed to a local Dairy Queen.He teased the onlooking news media as he entered and wondered aloud what DQ's signature "Blizzard" was before handing them out to adoring fans. "Anyone want one back there?" he asked the crowd, which chanted, "USA! USA! USA!"