A blast of Arctic air from the polar vortex has brought dangerous, bone-chilling cold to a wide swath of the United States on Tuesday, stretching from the Dakotas through Maine, with snow expected as far south as Alabama and Georgia. Arctic air and icy conditions led schools to close, flights to be cancelled and railway officials to set fires on train tracks to prevent them from cracking.
Trump, 70, took the oath of office in front of about 800,000 people who braved chilly weather to gather on the National Mall in the center of the capital to celebrate the rank political outsider, who defied all odds to defeat political heavyweight Hillary Clinton in the November polls.