MA-9

Massachusetts — U.S. House District 9

Nov 3, 2018Massachusetts2 candidates

Challengers

2

WK

William Keating

(D)Won

Democratic incumbent for Massachusetts's 9th district; former Norfolk County District Attorney and long-time state legislator.

Vote share59.4%

PD

Peter D Tedeschi

(R)Lost

Vote share40.6%

Campaign finance data not yet available for this race.

Recent Coverage

4

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The HillSep 18, 2026

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SemaforSep 15, 2026

Unchecked, Joe Wilson's Serbia crusade may blow up in our faces

Responsible StatecraftSep 14, 2026

Election History

2024

2022

2020

2018

2026

William Keating(D)N/A

Tyler MacAllister(R)N/A

2024

William R. Keating(D)54.2%

Dan Sullivan(R)41.7%

Blanks(N)4.0%

2022

William R Keating(D)57.8%

Jesse G Brown(R)39.8%

Blanks(N)2.4%

2020

William R Keating(D)58.9%

Helen Brady(R)34.9%

Michael Manley(U)2.2%

2018

William Keating(D)59.4%

Peter D Tedeschi(R)40.6%

Campaign finance data sourced from FEC filings. Election results from MIT Election Lab. ChamberLight is not an official government source.