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Pennsylvania voters will go to the polls under a new congressional map this fall after the state Supreme Court ruled the old Republican-drawn map unconstitutional due to gerrymandering. The shuffle could help Democrats gain as many as six seats in the delegation with the new 5th, 6th, 7th and 17th districts the most likely to flip. Notably, of those districts, only the 17th has a current Republican representative on defense: Rep. Keith Rothfus (R), who will face Rep. Conor Lamb (D) in a battle of incumbents. Lamb won a stunning special election in February that helped energize Democrats around the country and is in good shape to take the seat of this new district. It won't be all wins for Democrats, though. Democrats are almost guaranteed to lose one seat in Pennsylvania, as Lamb's current district was drawn into stronger Republican territory under the new map. Pennsylvania Democrats Gov. Tom Wolf and Sen. Bob Casey are also both up for re-election this year and widely expected to win. 


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