New Hampshire voters head to polls in race crucial to Democrats’ Senate hopes

New Hampshire voters head to the polls Tuesday for primaries determining a critical Senate contest. Democrats must defend this open seat, vacated by retiring three-term incumbent Jeanne Shaheen, to maintain hopes of reclaiming the upper chamber. Congressman Chris Pappas leads the Democratic field with over $4m in cash on hand, though he faces a progressive primary challenge from Karishma Manzur. Meanwhile, Republicans view the race as a key opportunity to flip the seat in their favor.