Allison ran for [[United States Senate]] in the 1870 midterms to succeed Grimes, though lost the primary to James B. Howell, a member of the opposing party faction.<ref name=bio/> However, he rebounded politically in the following 1872 elections, obtaining the Republican nomination for the race pertaining to Iowa's other Senate seat and winning the general election uncontested.<ref>[https://www.ourcampaigns.com/RaceDetail.html?RaceID=391317 IA US Senate Race - Jan 18, 1872]. ''Our Campaigns''. Retrieved November 21, 2021.</ref> | Allison ran for [[United States Senate]] in the 1870 midterms to succeed Grimes, though lost the primary to James B. Howell, a member of the opposing party faction.<ref name=bio/> However, he rebounded politically in the following 1872 elections, obtaining the Republican nomination for the race pertaining to Iowa's other Senate seat and winning the general election uncontested.<ref>[https://www.ourcampaigns.com/RaceDetail.html?RaceID=391317 IA US Senate Race - Jan 18, 1872]. ''Our Campaigns''. Retrieved November 21, 2021.</ref> |