The Democrats face many obstacles in this effort, but the greatest threat is the fierce internal divisions within the party.
Two of the leading prospective presidential candidates, Sens. Kamala Harris (D-Calif.) and Elizabeth Warren (D-Mass.), have begun national fundraising operations. Former Vice President Joe Biden has been busy building a national email list to communicate directly with his supporters, and Rep. John Delaney (D-Md.) has already announced his presidential candidacy.