Congressional Hispanic Caucus chair Adriano Espaillat (D-N.Y.) is in what fellow House Democrats and other sources familiar with his race describe as an "existential" battle for reelection. Why it matters: The race embodies the Democratic civil war being waged across the country, with an establishment-aligned member of the party's old guard fending off a challenge from a younger leftist. Espaillat, a longtime fixture in Upper Manhattan politics, is touting support from New York Gov. Kathy Hochu