2018Final results
2018 election for Illinois's 13th District
U.S. House · Illinois
Rodney Davis (R) won with 50.3% of the vote, defeating Betsy Dirksen Londrigan (D) by 0.8 points.
Rodney DavisRepublican · winner
50.3%136,516
Betsy Dirksen LondriganDemocrat
49.6%134,458
Thomas "jacob" J. KunaOther party
0.0%7
271,280 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.
Betsy Dirksen LondriganRodney Davis
$4.3M
Raised by the campaign
$3.6M
$4.3M
Spent by the campaign
$4M
$747
Cash on hand
$19.6K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018
The candidates
Rodney Davis (R)Betsy Dirksen Londrigan (D)
Also on the ballot: Thomas "jacob" J. Kuna (Other party), 0.0%