Conservative primary voters "have to yield" to reality, Senate Republicans' campaign chairman said Wednesday. Sen. John Cornyn (Texas), the chairman of the National Republican Senatorial Committee (NRSC), suggested that conservatives need to have a more realistic sense of which races are winnable and with which candidates. "Folks on the right, and frankly I'm one of them in terms of voting record, have to yield to the world as it is and not necessarily how they wish it would be," Cornyn told Reuters for a story about centrist Rep. Mike Castle's (R) bid for Senate next year in Delaware. Belying Cornyn's...