JEFFERSON CITY, Mo. (AP) — Democratic Missouri state House Rep. Bill Otto says he’s running for Congress.

Otto on Tuesday announced plans to run to represent Missouri’s 2nd Congressional District in suburban St. Louis, which has been represented by Republican U.S. Rep. Ann Wagner since 2013.

Former Republican U.S. Rep. Todd Akin held the seat before Wagner.

Otto, of Maryland Heights, was elected to the Missouri state House in 2012. He previously served in the Navy and worked as an air traffic controller.

He spoke against radioactive contamination at landfills in the St. Louis suburb of Bridgeton in his Tuesday announcement. Wagner has raised similar concerns after a contractor 40 years ago illegally dumped waste at West Lake Landfill.