Bernie Sanders announces 2020 run: "We're going to win" Vermont Sen. Bernie Sanders says he will run again for the Democratic nomination. The three-term Independent senator announced his plans on Tuesday morning. The 77-year-old congressman is the 10th candidate to join the most diverse Democratic Party field in U.S. history. Only on “CBS This Morning,” John Dickerson spoke to Sanders about taking another shot at the presidency and why he believes this campaign will succeed.