Former mayor campaigns for Niermann Former Kansas City, Kansas, Mayor Carol Marinovich joined Tom Niermann, a candidate for the Democratic nomination for the U.S. House, 3rd District, in campaigning door-to-door this afternoon in the Rosedale area of Kansas City, Kansas. The primary election is Aug. 7. (Photo by William Crum) Former Kansas City, Kansas, Mayor Carol Marinovich joined Tom Niermann, a candidate for the Democratic nomination for the U.S. House, 3rd District, in campaigning door-to-door this afternoon in the Rosedale area. The primary election is Aug. 7. (Photo by William Crum) Former Kansas City, Kansas, Mayor Carol Marinovich joined Tom Niermann, a candidate for the Democratic nomination for the U.S. House, 3rd District, in campaigning door-to-door this afternoon in the Rosedale area. The primary election is Aug. 7. (Photo by William Crum) Tom Niermann’s campaign staff and volunteers, at his campaign headquarters on West 43rd Avenue. (Photo by William Crum) Tom Niermann is in a crowded field of Democratic candidates running for the U.S. House, 3rd District seat. Niermann, a teacher, said today that education is his top priority. (Photo by William Crum)