Florida Gov. Ron DeSantis has plummeted to fourth place in South Carolina’s Republican primary race, a Washington Post-Monmouth University poll released Thursday found.The survey examined the race in South Carolina, one of the early primary states, and found former President Donald Trump leading with 46 percent support. Former South Carolina Gov. Nikki Haley found herself in second place, 28 points behind, with 18 percent support.South Carolina Sen. Tim Scott came in third place, garnering double-digit support with ten percent.DeSantis, however, fell to fourth place in the early primary state with nine percent support, followed by former New Jersey Gov. Chris...