2018Final results
2018 election for Pennsylvania's 17th District
U.S. House · Pennsylvania
Conor Lamb (D) won with 56.3% of the vote, defeating Keith J. Rothfus (R) by 12.5 points.
Conor LambDemocrat · winner
56.3%183,162
Keith J. RothfusRepublican
43.7%142,417
325,579 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.
Conor LambKeith J. Rothfus
$9.1M
Raised by the campaign
$3.2M
$8.9M
Spent by the campaign
$3.8M
$246.6K
Cash on hand
$36.6K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018