Guffey: 40–50% 50–60% 60–70%
David A. Reed Republican
Joseph F. Guffey Democratic
The 1934 United States Senate election in Pennsylvania was held on November 6, 1934. Incumbent Republican U.S. Senator David A. Reed sought re-election to another term, but was defeated by Democratic nominee Joseph F. Guffey.
As of 2023, this is the last time the following counties have voted Democratic in a Senate election: Adams, Blair, Bedford, Cumberland, Franklin, Juniata, and Pike.