Iowa state Sen. Zach Wahls launched his U.S. Senate bid on Wednesday with a video on social media, joining a competitive Democratic primary as the party seeks to unseat Sen. Joni Ernst (R-IA). “I’ll stand up to the leaders of both parties because they are not delivering for us,

CORALVILLE, Iowa — UPDATE: Iowa State Sen. Zach Wahls has formally announced his run for U.S. Senate Wednesday morning. His campaign website states, "Iowa needs a senator who understands our communities and will fight for working families -- not special interests. That's exactly what Zach Wahls will do for us in the U.S. Senate."