Today is primary day across Iowa. A number of key races are on the ballot:
U.S. Senate Democratic Primary: Tim Fiegen, Rob Hogg, Patty Judge, and Bob Krause are running to determine who will win the party's nomination to face Republican incumbent Chuck Grassley in November.
1st Congressional District: Democrats Pat Murphy and Monica Vernon face each other in a primary for the second time in two years. The winner faces Republican Rep. Rod Blum.
3rd Congressional District: Democrats Desmund Adams, Jim Mowrer, and Mike Sherzan are running for the party's nomination. The winner faces Republican Rep. David Young.
4th Congressional District: Republican incumbent Steve King faces a primary challenge from Rick Bertrand.
There are also many primaries for state legislative seats.
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