With John Boehner now departing as House speaker, an influential Republican Party official is now seeking the ouster of another GOP leader who has frustrated conservatives: Senate Majority Leader Mitch McConnell. “McConnell needs to resign!!” Louisiana GOP Chairman Roger Villere wrote in a Facebook posting. Mr. Villere isn’t just any Republican. He’s the longest-serving state GOP chairman in the nation, with 12 years on the job, and is the vice chairman of the Republican National Committee, the GOP’s national governing body. He also serves on the RNC’s executive committee that makes decisions alongside Chairman Reince Priebus. “Mitch is a good...