2018Final results
2018 election for Texas's 20th District
U.S. House · Texas
Joaquin Castro (D) won with 80.9% of the vote, defeating Jeffrey Blunt (Lib) by 61.7 points.
Joaquin CastroDemocrat · winner
80.9%138,949
Jeffrey BluntLibertarian
19.1%32,904
171,853 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.
Joaquin CastroNo Republican
$956.7K
Raised by the campaign
—
$955.3K
Spent by the campaign
—
$128.6K
Cash on hand
—
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018