2018Final results
2018 election for Texas's 10th District
U.S. House · Texas
Michael T. McCaul (R) won with 51.1% of the vote, defeating Mike Siegel (D) by 4.3 points.
Michael T. McCaulRepublican · winner
51.1%157,165
Mike SiegelDemocrat
46.8%144,034
Mike RyanLibertarian
2.2%6,627
307,826 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Mike SiegelMichael T. McCaul
$489.2K
Raised by the campaign
$1.8M
$485.7K
Spent by the campaign
$1.9M
$3.5K
Cash on hand
$62.2K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018