#PresidentSanders Trends as br Sanders Leads Democratic Fundraising.br The Vermont senator br is a leading contender for the br 2020 Democratic presidential nomination.br The Sanders campaign br announced that it raised close to br $26 million in the fourth quarter of 2019.br By mid-day on Monday, the br news of Sanders' fundraising br success led to thousands ofbr tweets with the hashtag.br Former vice president br Joe Biden remains the frontrunner.br Sanders' chances of winning br the nomination, however, are being br reconsidered by Democratic officials.br Also on Monday, br the Sanders campaign released br letters from his doctor stating that br he is fit to serve as president.br I see no reason why he cannot continue campaigning without limitation and, should he be elected, I am confident he has the mental and physical stamina to fully undertake the rigors of the Presidency, Dr. Martin LeWinter, University of Vermont br Medical Center, via CNBC.