Several Democrats are competing Tuesday for the chance to challenge Republican Chuck Grassley in what will likely be an uphill effort to defeat one of the Senate's longest-serving members.
The Democratic primary largely centers on Abby Finkenauer, a former congresswoman from northeast Iowa, and Mike Franken, a retired Navy vice admiral. Physician Glenn Hurst, a city councilman and active member of the Iowa Democratic Party state central committee, is also running, but he has raised and spent far less money and is not well known around the state.
