IOWA CAUCUSESPhotos: Republican presidential candidate Vivek Ramaswamy at the Des Moines Register's SoapboxLily SmithDes Moines RegisterGOP presidential candidate Vivek Ramaswamy speaks at the Des Moines Register Political Soapbox during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The RegisterGOP presidential candidate Vivek Ramaswamy speaks at the Des Moines Register Political Soapbox during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The RegisterGOP presidential candidate Vivek Ramaswamy speaks at the Des Moines Register Political Soapbox during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The RegisterGOP presidential candidate Vivek Ramaswamy speaks with a voter after his Des Moines Register Political Soapbox appearance during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The RegisterGOP presidential candidate Vivek Ramaswamy speaks at the Des Moines Register Political Soapbox during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The RegisterGOP presidential candidate Vivek Ramaswamy speaks at the Des Moines Register Political Soapbox during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The RegisterPeople watch as GOP presidential candidate Vivek Ramaswamy speaks at the Des Moines Register Political Soapbox during day three of the Iowa State Fair on Saturday, August 12, 2023 in Des Moines.Lily Smith/The Register