2012Final results
2012 election for Missouri's 2nd District
U.S. House · Missouri
Ann Wagner (R) won with 60.1% of the vote, defeating Glenn Koenen (D) by 23.0 points.
Ann WagnerRepublican · winner
60.1%236,971
Glenn KoenenDemocrat
37.1%146,272
Bill SlantzLibertarian
2.3%9,193
Anatol ZorikovaConstitution
0.5%2,012
394,448 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 2012
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.
Glenn KoenenAnn Wagner
$59.6K
Raised by the campaign
$2.7M
$59.6K
Spent by the campaign
$2.5M
$0
Cash on hand
$205.5K
Campaign money: FEC, through Dec 31, 2012.
Source: FEC campaign filingsUpdated Dec 31, 2012
The candidates
Ann Wagner (R)Glenn Koenen (D)
Also on the ballot: Bill Slantz (Libertarian), 2.3%; Anatol Zorikova (Constitution), 0.5%