In October 2015, after months of speculation, Biden announced he would not seek the presidency in the 2016 election. In January 2017, Obama awarded Biden the Presidential Medal of Freedom with distinction. After completing his second term as vice president, Biden joined the faculty of the University of Pennsylvania, where he was named the Benjamin Franklin Professor of Presidential Practice. He announced his 2020 candidacy for president on April 25, 2019, joining a large field of Democratic candidates pursuing the party nomination. Throughout 2019, he was widely regarded as the party's frontrunner. After briefly falling behind Bernie Sanders after poor showings in the first three state contests, Biden won the South Carolina primary decisively, and several center-left candidates dropped out of the race and endorsed him before Super Tuesday. Biden went on to win 18 of the next 26 contests. With the suspension of Sanders's campaign on April 8, 2020, Biden became the Democratic Party's presumptive nominee for the presidential election.