Biden will find it difficult to excite millennial and progressive voters, the base of the new radicalized Democratic Party tIt looks like another heavyweight Democratic presidential contender is on the verge of entering the race. Former Vice President Joe Biden is moving closer to making an official announcement that he will be a candidate in 2020. If he runs, Biden will start at the top of the polls. The latest Emerson national poll has Biden and U.S. Senator Bernie Sanders of Vermont tied at 26%, leading the large field of candidates.