2018 Massachusetts House Election Interactive Map

All US House seats to be contested in 2018
Massachusetts has nine congressional districts, all of which are held by Democrats. None are seen as competitive in 2018. It is the state with both the largest number of districts under single party control and is tied with Tennessee as states with the most districts where not a single one is competitive. Incumbent Michael Capuano (MA-7) was defeated in his bid for renomination.

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District Incumbent Party Since Term Predictions Margin of Victory
Pro Map House(a) President(b)
MA-1 Richard Neal
1989 15th
55.5% 20.7%
MA-2 James McGovern
1997 11th
* 19.4%
MA-3 Niki Tsongas
2007 6th
37.5% 22.8%
Incumbent not running for re-election in 2018.
MA-4 Joseph Kennedy III
2013 3rd
40.3% 24.2%
MA-5 Katherine Clark
2013 3rd
* 43.6%
MA-6 Seth Moulton
2015 2nd
* 17.9%
MA-7 Michael Capuano
1999 10th
* 72.2%
Incumbent defeated in primary for 2018 election.
MA-8 Stephen Lynch
2001 9th
45.0% 26.0%
MA-9 William Keating
2011 4th
22.1% 10.7%

(a)Source: Ballotpedia (for margins). The margin is the percentage difference between the top two vote-getters in 2016.
More recent results (i.e., special elections held in 2017-18 for vacancies) are not displayed.
* Race was uncontested | ^Top two vote-getters were from the same party

(b)Source: Daily Kos. The margin is the percentage difference between Donald Trump and Hillary Clinton.