2018Final results
2018 election for Texas's 28th District
U.S. House · Texas
Henry Cuellar (D) won with 84.4% of the vote, defeating Arthur Thomas IV (Lib) by 68.8 points.
Henry CuellarDemocrat · winner
84.4%117,421
Arthur Thomas IVLibertarian
15.6%21,719
139,140 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.
Henry CuellarNo Republican
$1.7M
Raised by the campaign
—
$1.2M
Spent by the campaign
—
$2.5M
Cash on hand
—
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018