Following President Joe Biden’s victory last November — and his early success in coalescing Democratic lawmakers behind his agenda — overlapping questions of representation and ideology are simmering again in Pennsylvania as the Senate primary field grows.
Though progressive policies have largely been embraced by the Democratic mainstream, the contest is shaping up as a test of whether candidates who support ambitious projects like “Medicare for All” and aggressive action on climate change can succeed in such a politically divided state. Moderates are also under pressure — this time to…