With Ben Carson still on his tail, Donald Trump nonetheless holds his lead in Iowa, while opening up commanding leads in New Hampshire and South Carolina. According to a new poll out from CBS News/YouGov, Trump leads Carson 40-12 in New Hampshire, 36-21 in South Carolina, and 29-25 in Iowa. Ted Cruz comes in third in Iowa and South Carolina with 10 and 6 percent, and John Kasich comes third in New Hampshire with 9 percent of the vote, in a poll of likely Republican primary votes. In perhaps a telling sign of why Trump, who leads the Washington Examiner's...