What does the election loss mean for the GOP?

Democrats squeaked out a win in the special House election in Pennsylvania Tuesday. What will that mean for Republicans in the fall midterm elections? A roundup of editorials Thursday takes a look at the issue.
Opinions from the right:
Why It doesn't Matter Who the Winner Is in PA-18
From Real Clear Politics: The loss isn’t exactly as it appears.
The blue wave is coming! @ConorLambPA's apparent victory in a district that favored Trump last year by almost 20 points is growing proof voters want change. We can compete across the country on the strength of an economic agenda, our values, and our basic decency. #PA18
— Adam Schiff (@AdamSchiffCA) March 14, 2018
Republicans need to start calling the Democrats' bluff if they want to win elections
From Fox News: The GOP is beginning to see the same message problems Democrats have been dealing with.
Democratic strategist Joel Payne on #PA18: "The #Trump agenda is really failing in #Trump country." https://t.co/mba1bAl1AR pic.twitter.com/duNwMmGYg7
— Fox News (@FoxNews) March 15, 2018
After PA-18 squeaker, Democrats face a choice
From The Federalist: The left has to decide if it can shift to the center.
