Vice President Joe Biden's reported focus on South Carolina as key to his potential presidential bid has early-state operatives and officials — and even some of Biden's supporters — alarmed and incredulous. Larry Sabato, a political analyst at the University of Virginia Center for Politics, called the prospect of sitting out an early primary state "ridiculous, utterly ridiculous." "Joe Biden is the incumbent two-term vice president of the United States. You don't get to skip states if you are the incumbent vice president and you're serious," he s...