2018Final results
2018 election for New York's 21st District
U.S. House · New York
Elise M. Stefanik (R) won with 56.1% of the vote, defeating Tedra L. Cobb (D) by 13.7 points.
Elise M. StefanikRepublican · winner
56.1%131,981
Tedra L. CobbDemocrat
42.4%99,791
Lynn KahnGreen
1.5%3,437
235,267 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 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 Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Tedra L. CobbElise M. Stefanik
$1.5M
Raised by the campaign
$2.8M
$1.5M
Spent by the campaign
$3M
$39.3K
Cash on hand
$352.2K
Other candidates' campaigns: Lynn Kahn $5.8K.
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018