Republican U.S. Rep. Steve Scalise and Senate hopeful Rob Maness bookended the last day of this year's RedState gathering. The annual meeting, held this year in Louisiana's bluest city, New Orleans, brings together conservative bloggers, activists and candidates to discuss political strategy and key policy initiatives. Conspicuously absent from the gathering this weekend was U.S. Rep. Bill Cassidy, R-Baton Rouge, whose conservative credentials failed to pass muster with the event's host, RedState blog founder and editor Erick Erickson. "I'm just not a big fan of Bill Cassidy," Erickson said in an interview Saturday, confirming that an invitation was not extended...