Marilyn Nieves/Getty Images(WASHINGTON) -- President Joe Biden and Vice President Kamala Harris are planning a campaign swing through South Carolina ahead of the state's Feb. 3 primary, Jaime Harrison, chairman of the Democratic National Committee, told ABC News. While details of the campaign trip are still coming together, Biden's decision to head to South Carolina offers a first glimpse into his 2024 schedule, which is set to include an early visit to a state that was key to his White House path but which is not expected to be important in next year's general election. South Carolina has, ho...