2018Final results
2018 election for Louisiana's 6th District
U.S. House · Louisiana
Garret Graves (R) won with 69.5% of the vote, defeating Justin Dewitt (D) by 49.0 points.
Garret GravesRepublican · winner
69.5%186,553
Justin DewittDemocrat
20.5%55,089
Andie SaizanDemocrat
8.1%21,627
Devin Lance GrahamIndependent
2.0%5,256
268,525 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.
Justin DewittGarret Graves
$37K
Raised by the campaign
$2.5M
$31K
Spent by the campaign
$1.8M
$6K
Cash on hand
$1.5M
Other candidates' campaigns: Andie Saizan $17.5K.
Campaign money: FEC, through Oct 17, 2018; FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018
The candidates
Garret Graves (R)Justin Dewitt (D)Andie Saizan (D)
Also on the ballot: Devin Lance Graham (Independent), 2.0%