U.S. Senate — Colorado
Senator John Hickenlooper seeks re-election in Colorado as Republicans recruit challengers in a state that has trended Democratic but remains competitive.
John Hickenlooper has served as U.S. Senator from Colorado since 2021, after terms as Governor (2011–2019) and Mayor of Denver (2003–2011). A geologist and brewpub entrepreneur turned politician, he is known for his pragmatic, business-friendly approach to Democratic politics and ran briefly for President in 2020.
Joe O'Dea is a Colorado construction executive who ran for Senate in 2022, losing to Michael Bennet by 5 points while outperforming most Republicans nationally. A moderate Republican who supports abortion exceptions, he is mounting a second Senate bid targeting a more favorable electoral environment in 2026.
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