2012Final results
2012 election for Texas's 18th District
U.S. House · Texas
Sheila Jackson Lee (D) won with 75.0% of the vote, defeating Sean Seibert (R) by 52.4 points.
Sheila Jackson LeeDemocrat · winner
75.0%146,223
Sean SeibertRepublican
22.6%44,015
Christopher BarberLibertarian
2.4%4,694
194,932 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.
Sheila Jackson LeeSean Seibert
$600.5K
Raised by the campaign
$136.9K
$554.8K
Spent by the campaign
$133K
$160.3K
Cash on hand
$3.9K
Campaign money: FEC, through Dec 31, 2012.
Source: FEC campaign filingsUpdated Dec 31, 2012