Pennsylvania House election results
The competitive race pit Conor Lamb (D) against State Rep. Rick Saccone (R) in a district Trump won by 20 points.
People wait for results to come in at a watch party for Democratic candidate Conor Lamb in Canonsburg, Pa. (Photo by Salwan Georges/The Washington Post)
People wait for results to come in at a watch party for Democratic candidate Conor Lamb in Canonsburg, Pa. (Photo by Salwan Georges/The Washington Post)
Rick Saccone supporters cheer as they watch results during the party for the Republican candidate in McKeesport, Pa. (Photo by Ricky Carioti/The Washington Post)
Rick Saccone supporters cheer as they watch results during the party for the Republican candidate in McKeesport, Pa. (Photo by Ricky Carioti/The Washington Post)
How Pennsylvania's districts will change

Current district splits,

with PA-18

The current 18th was supposed to be safe GOP. Trump beat Clinton here by almost 20 points.

Pittsburgh

18

Philadelphia

4 districts

Clinton won by 12+ pts

6 districts

Presidential vote within 12 pts

18

8 districts

Trump won by 12+ pts

District splits in Nov. 2018, with the four districts that will get a chunk of PA-18

The new 17th District, where Lamb lives, will be a key race.

18

17

13

14

18

5 districts

Clinton won by 12+ pts

17

6 districts

Presidential vote within 12 pts

14

13

7 districts

Trump won by 12+ pts

Current district splits, with PA-18

Erie

The current 18th District was supposed to be safely GOP. Trump beat Clinton here by almost 20 points.

Pittsburgh

Harrisburg

18

Philadelphia

Party lean of current districts

More Republican

18

4 districts

6 districts

8 districts

Clinton won

by 12+ pts

Presidential vote

within 12 pts

Trump won

by 12+ pts

District splits in Nov. 2018, with the four districts that will get a chunk of PA-18

Erie

The new 17th District, where Lamb lives, will be a key race.

17

18

Harrisburg

13

14

Philadelphia

Party lean of new districts

More Republican

18

17

14

13

5 districts

6 districts

7 districts

Clinton won

by 12+ pts

Presidential vote

within 12 pts

Trump won

by 12+ pts

Voters in the current 18th District ...

... will end up in four different districts in November

Erie

Erie

The current 18th District was supposed to be safely GOP. Trump beat Clinton here by almost 20 points.

The new 17th District, where Lamb lives, will be a key race.

17

Pittsburgh

18

Harrisburg

Harrisburg

18

13

14

Philadelphia

Philadelphia

Party lean of current districts

Party lean of new districts

More Republican

More Republican

18

18

17

14

13

5 districts

6 districts

7 districts

4 districts

6 districts

8 districts

Clinton won

by 12+ pts

Presidential vote

within 12 pts

Trump won

by 12+ pts

Clinton won

by 12+ pts

Presidential vote

within 12 pts

Trump won

by 12+ pts

What the race means nationally

A narrow Lamb win would be a significant

shift toward Democrats in the district.

Shift to the right

2016 GOP win

2016 Dem. win

Shift to the left

+10D

0

+10R

+20R

2016

PRESIDENTIAL

margin

special

election

margin

Approx.

shift

Penn. 18th

Ala. Senate

Ga. 6th

S.C. 5th

Mont. House*

Kan. 4th

+10D

0

+10R

+20R

Va. Governor

N.J. Governor

A narrow Lamb win would be a significant

shift toward Democrats in the district.

Shift to the right

2016 GOP win

Shift to the left

2016 Dem. win

+10D

0

+10R

+20R

+30R

special

election

margin

2016 PRESIDENTIAL

margin

Approx.

shift

Penn. 18th

Ala. Senate

Ga. 6th

S.C. 5th

Mont. House*

Kan. 4th

+10D

0

+10R

+20R

+30R

Va. Governor

N.J. Governor

Sources: Certified Congressional results from Dave Leips’ Atlas of U.S. Elections. Precinct-level election results compiled by Nathaniel Kelso and Michal Migurski.

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