U.S. House seat · former district
Pennsylvania's 20th District
13 elections since 1976: Democrats won 13, Republicans 0.
2000 election
Nov 7, 2000- Frank Mascara (D) · won64.4%
- Ronald J. Davis (R)35.6%
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Every election for this seat
13 races since 1976. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 1992 | |||
| 2000 | Frank Mascara (D) | Ronald J. Davis (R) | 28.8 |
| 1998 | Frank Mascara (D) | — | Unopposed |
| 1996 | Frank Mascara (D) | Mike McCormick (R) | 7.8 |
| 1994 | Frank Mascara (D) | Mike McCormick (R) | 6.2 |
| 1992 | Austin Murphy (D) | Bill Townsend (R) | 1.5 |
| Lines first used in 1982 | |||
| 1990 | Joseph Gaydos (D) | Robert C. Lee (R) | 31.2 |
| 1988 | Joseph Gaydos (D) | Richard W. Wilson (I) | 96.9 |
| 1986 | Joseph Gaydos (D) | Alden W. Vedder (I) | 97.0 |
| 1984 | Joseph Gaydos (D) | Daniel Lloyd (R) | 51.9 |
| 1982 | Joseph Gaydos (D) | Terry T. Ray (R) | 53.2 |
| Lines first used in 1972 | |||
| 1980 | Joseph Gaydos (D) | Kathleen M. Meyer (R) | 45.0 |
| 1978 | Joseph Gaydos (D) | Kathleen M. Meyer (R) | 44.3 |
| 1976 | Joseph Gaydos (D) | John P. Kostelac (R) | 50.3 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)