Independent U.S. senator to again seek Democratic presidential nomination
Entrepreneur running in Democratic presidential primary wants to put money in your pocket
U.S. senator seeks to become first woman and Minnesota politico to win the White House
U.S. senator from New Jersey announces presidential run.
Democratic congresswoman from Hawaii seeks to become first millennial president.
U.S. senator from Massachusetts enters Democratic presidential primary with money on her mind
Mayor of South Bend, Indiana, announces presidential bid
Former West Virginia state senator running for the presidency