Cory Gardner

Republican

Opponents (Received at least 1% of vote)

John W. Hickenlooper

Democratic • 2020 General

Raymon Anthony Doane

Libertarian • 2020 General

Mark Udall

Democratic • 2014 General

Gaylon Kent

Libertarian • 2014 General

Steve Shogan

Unaffiliated • 2014 General

Raul Acosta

Unaffiliated • 2014 General

Brandon Shaffer

Democratic • 2012 General

Josh Gilliland

Libertarian • 2012 General

Doug Aden

American Constitution • 2012 General

Betsy Markey

Democratic • 2010 General

Ken "Wasko" Waszkiewicz

Unaffiliated • 2010 General

Pauline Artery

Democratic • 2006 General