“When Elise Stefanik decided to quit politics last year after President Donald Trump didn’t fully back her in the New York governor’s primary, many observers assumed Republicans would have little trouble holding her seat in the 21st Congressional district, in one of the reddest corners of the deep-blue state,” Bloomberg reports.“Instead, it’s become an unexpected battleground in a year when control of the House could swing on a handful of races. The GOP is in danger of losing a seat once held by one of its rising stars to Democrat Blake Gendebien, a local dairy farmer and first-time candidate for Congress who has been winning over voters with a blend of earnest centrism and personal outreach.”