Bernie Sanders, the leader of the new democratic-socialist movement in the United States, has officially announced his bid to run for president in 2020. Many of Sanders supporters have been patiently waiting for the announcement which came after a number of Democrats have already thrown their hats in the competition. Sanders wrote on Twitter:
"I'm running for president. I am asking you to join me today as part of an unprecedented and historic grassroots campaign that will begin with at least 1 million people from across the country."