Officials on Monday defended allowing a float that was critical of same-sex marriage to be part of a city parade on Friday.
"We can't discriminate based on anyone's viewpoint," said Erika Newton, of the Sioux City Convention Bureau, which organized the annual Big Parade.
The Mardi Gras-themed parade was held downtown and televised on KTIV. Various community groups, businesses and political candidates took part.
One of the entries featured a truck pulling a sign advertising letusvoteiowa.org, a webpage created by the conservative Christian group The Family Leader, which advocates for the Iowa Marriage Amendment. The measure would define marriage in Iowa as a union between one man and one woman.