All 110 seats in the Michigan House of Representatives will be up for election in November. Republicans won a 63-47 majority in 2016, the same margin as in 2014. There are 42 open seats, 25 held by Republicans and 17 held by democrats. There are 23 open due to term-limits, 18 just due to seeking another office, and 1 pure retirement.
Democrats are hoping to take control of the state house. They may benefit from anti-Trump enthusiasm. Libertarians achieved major party status due to Gary Johnson’s showing in 2016, which led to more Libertarian candidates. The elimination of straight ticket voting may help Republicans in downballot races.
Conservatives did reasonably well in 2018 primaries. Conservative Lee Chatfield is the presumptive next house GOP leader.
The following lists district number, current incumbent, geographic description, 2012, 2014, and 2016 state house results, 2012 Romney %, 2016 Trump % (if known), and political rating. The complete candidate list is available here: