New Jersey U.S. Senator Cory Booker is dropping out of the Democratic presidential campaign. The decision by the African-American senator makes the remaining Democratic field less diverse. California Senator Kamala Harris dropped out of the race late last year. Booker’s campaign struggled with fundraising in the crowded Democratic field. Booker pitched a campaign theme of hope and optimism in the Trump era. In a statement to supporters, he said he still believes in that message and accused Trump of promoting hate and division.