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Pennsylvania House

Pennsylvania House

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Pennsylvania Senate / Pennsylvania House

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2018 Election Update

After the 2016 election, Republicans controlled the Pennsylvania State House 121-82. In May 2018, Democrats picked up a Republican-held seat in a special election in HD 178 to cut the Republican majority to 120-83.

Heading into the 2018 election, Republicans controlled the chamber 120-79 with four vacancies in Democratic-held seats. Democrats flipped 14 Republican-held seats and lost four Democratic-held seats for a net gain of ten seats. Republicans now control the chamber 110-93.

EveryDistrict endorsed nine successful Democratic challengers: Steve Malagari (HD 53, LDI: -2), Liz Hanbidge (HD 61, LDI: 4), Joe Ciresi (HD 146, LDI: 3), Joseph Webster (HD 150, LDI: 1), Danielle Otten (HD 155, LDI: -4), Melissa Shusterman (HD 157, LDI: 5), Christina Sappey (HD 158, LDI: -3), Mike Zabel (HD 163, LDI: 10), and Jennifer O’Mara (HD 165, LDI: -2). Democrats also flipped HD 74 (LDI: 26), HD 143 (LDI: -7), HD 162 (LDI: 13), and HD 167 (LDI: -2). Democrats lost HD 48 (LDI: 0), HD 71 (LDI: 5), HD 76 (LDI: -8), and HD 178 (LDI: -11).

EveryDistrict also endorsed: Byron Timmins (HD 46), Mary Popovich (HD 58), Patty Smith (HD 104), Kara Scott (HD 122), Amy Cozze (HD 137), Lauren Lareau (HD 142), Sara Johnson Rothman (HD 151), Kristin Seale (HD 168), Mike Doyle (HD 170), Claudette Williams (HD 176), and Adam Rodriguez (HD 189).

Click here for a spreadsheet of LDI scores and 2018 Pennsylvania election results.

Understanding the Map

EveryDistrict’s Legislative District Index (LDI) ranks state legislative districts on a scale from 100 to -100, using statewide elections data. Districts with a score of 100 would vote for statewide Democratic candidates by an average of 100 points (with the Democratic candidate receiving 100% of the vote); districts with a score of -100 would vote for statewide Republican candidates by an average of 100 points (with the Republican candidate receiving 100% of the vote). For a more realistic example, a district with a score of 10 would vote for statewide Democratic candidates by an average of 10 points (meaning we would expect the Democratic state legislative candidate to win with 55% of the vote compared to the Republican winning 45% of the vote).

EveryDistrict divides winnable districts into five categories. Dark blue districts lean Democratic and are held by a Democratic legislator. Light blue districts lean Republican and are held by a Democratic legislator. Yellow districts lean Democratic but are held by a Republican legislator; these districts represent the best pick up opportunities for Democrats. Pink districts lean slightly Republican, with a range of 0 up to -5; in the current political climate we’ve identified these districts as pick up opportunities for Democrats. Dark red districts are held by a Republican and have an LDI score of less than -5.

For more information about EveryDistrict’s LDI, please click here.

Updated LDI scores incorporating the 2018 election results will be released in spring 2019.