https://www.reuters.com/article/us-usa-election-sanders/sanders-drops-out-of-u-s-election-race-setting-up-biden-battle-with-trump-idUSKCN21Q2AM
https://www.reuters.com/article/us-usa-election-sanders/sanders-drops-out-of-u-s-election-race-setting-up-biden-battle-with-trump-idUSKCN21Q2AM