2014Flipped from DemocraticFinal results
2014 election for U.S. Senate in Colorado
U.S. Senate · Colorado
Cory Gardner (R) won with 48.2% of the vote, defeating Mark Udall (D) by 1.9 points, a seat Democrats won last time.
Cory GardnerRepublican · winner
48.2%983,891
Mark UdallDemocrat
46.3%944,203
Gaylon KentLibertarian
2.6%52,876
Steve ShoganIndependent
1.4%29,472
Ra_l AcostaIndependent
1.2%24,151
Bill HammonsOther party
0.3%6,427
2,041,058 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2014
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mark UdallCory Gardner
$17.4M
Raised by the campaign
$12.3M
$18.6M
Spent by the campaign
$12.5M
$173K
Cash on hand
$277.1K
Other candidates' campaigns: Steve Shogan $237.7K.
Campaign money: FEC, through Dec 31, 2014.
Source: FEC campaign filingsUpdated Dec 31, 2014
The candidates
Cory Gardner (R)Mark Udall (D)
Also on the ballot: Gaylon Kent (Libertarian), 2.6%; Steve Shogan (Independent), 1.4%; Ra_l Acosta (Independent), 1.2%; Bill Hammons (Other party), 0.3%