Bradley Zaun (R-Urbandale) is an Iowa State Senator representing the 22nd District as well as the Iowa Senate President pro tempore. He was the Republican nominee for Iowa's 3rd congressional district in the 2010 general election.

The Iowa Senate is the upper house of the Iowa General Assembly, United States. There are 50 seats in the Iowa Senate, representing 50 single-member districts across the state of Iowa with populations of approximately 60,927 per constituency, as of the 2010 United States census. Each Senate district is composed of two House districts. The Senate meets at the Iowa State Capitol in Des Moines.