New Pennsylvania Map Is Huge Midterm Development

David Wasserman looks at the new Pennsylvania map this way: The six Democratic pick-up opportunities became even stronger pick-up opportunities when it comes to the Cook Political Report’s Partisan Voting Index. Under the old map, the six most vulnerable Republican seats were a median R+3:

• PA-6: R+2
• PA-7: R+1
• PA-8: R+2
• PA-15: R+4
• PA-16: R+5
• PA-18: R+11

Under the new map, they are even:

• PA-1: R+1
• PA-5: D+13
• PA-6: D+2
• PA-7: D+1
• PA-10: R+6
• PA-17: R+3

First Read: ” This new map is the most consequential midterm development of 2018, and it’s going to produce a chain of events (members hunting for new districts, member-vs.-member races, possible retirements, even more lawsuits) that we’ll be following all year long.”