In the biggest upset of the 2018 elections so far, the chair of the House Democratic caucus lost his primary race to Alexandria Ocasio-Cortez, a 28-year-old activist and community organizer who worked for Sen. Bernie Sanders' 2016 presidential campaign. She rode an insurgent campaign to an unlikely victory. The AP called the race Tues. night with the Bronx-born Ocasio-Cortez, a member of the Democratic Socialists of America, leading 58-42, with 88% of the precincts reporting. The upset was a stunning blow for Crowley, a 10-term congressman and NY political machine boss who was viewed as a possible successor to Dem Leader Nancy Pelosi. He out-raised Ocasio-Cortez by a staggering 10-to-1 margin but made some stumbles in his campaign, including skipping a debate in the Bronx. The upset was a clear marker of the energy on the far left this year.