MA-09 elected a Democrat in 2018.

D+18.8 on 323,928 certified votes. Below: the 2018 result and this district's margin across every cycle on record.

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MA-09 — 2018 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

192,347

59.4%

Republican (R)

131,463

40.6%

All others

118

0.0%

Margin

D+18.8

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Margin history

MA-09 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	D	+12.5%	465,097
2022	D	+18.0%	342,455
2020	D	+25.0%	424,601
2018	D	+18.8%	323,928
2016	D	+22.1%	379,895
2014	D	+10.0%	255,541
2012	D	+26.6%	362,405
2010	D	+42.2%	229,964
2008	D	+98.7%	245,294
2006	D	+56.4%	217,036
2004	D	+99.0%	220,312
2002	D	+99.5%	168,976
2000	D	+58.0%	248,756
1998	D	+99.4%	151,555
1996	D	+44.5%	238,152
1994	D	+39.5%	209,698
1992	D	+47.8%	253,634
1990	D	+62.0%	200,997
1988	D	+99.8%	161,042
1986	D	+73.7%	149,271
1984	D	+99.9%	153,252
1982	D	+29.7%	160,225
1980	D	+100.0%	104,046
1978	D	+91.8%	116,338
1976	D	+46.4%	149,371