This time a Sarah Palin endorsement wasn't enough for victory. But score another win for Sen. Jim DeMint. Rep. Todd Tiahrt was edged out by Rep. Jerry Moran in a battle between two conservative congressmen for the Republican Senate nomination in Kansas. Moran is now considered the overwhelming favorite in November's general election to succeed GOP Sen. Sam Brownback, who is running for Kansas governor rather than for re-election to Congress. Tiahrt was endorsed by the former Alaska governor and 2008 Republican vice presidential nominee in June. In a Facebook post, Palin said Tiahrt was "a protector of our Constitution,...