At least two candidates will seek the Democratic nomination in Iowa Senate district 21, an open seat due to Senator Matt McCoy’s decision to run for Polk County supervisor. Connie Ryan announced her candidacy last week, and Claire Celsi joined the field this morning.

State Senator Matt McCoy announced yesterday that he will run for Polk County supervisor rather than for re-election to the Iowa legislature. His decision to challenge longtime Supervisor John Mauro in the Democratic primary sets up a “epic battle of the titans” in the fifth district, covering the south side of Des Moines, much of the city center and south of Grand areas on the west side. It also opens up Democratic-leaning Iowa Senate district 21.

Connie Ryan rolled out her candidacy yesterday but will likely have competition in the June 5 primary.