1980 United States Senate election in Iowa
{'<entity_0>': '1980 United States Senate election in Iowa', '<entity_1>': '04 November 1980', '<entity_2>': 'Chuck Grassley', '<entity_3>': 'Iowa'}
[['1980 United States Senate election in Iowa', 'point in time', '04 November 1980'], ['1980 United States Senate election in Iowa', 'successful candidate', 'Chuck Grassley'], ['1980 United States Senate election in Iowa', 'applies to jurisdiction', 'Iowa']]
The <entity_0> was held on <entity_1>. Incumbent Democratic United States Senator John Culver ran for reelection to a second term, but lost to Republican nominee <entity_2>, the United States Congressman from <entity_3>'s 3rd congressional district.
['election', 'United States Senate election']