It has absolutely nothing to do with Moore being a "rogue conservative."
No it didn't. It had absolutely everything to do with McConnell withholding funds because the guy he wanted lost toe GOP nomination to Judge Moore.
Because that's what Mitch does when one of "his guys" is either challenged or defeated.
It had to do with the sexual allegations against Moore.
You mean the ones that two former Obama's staffers ginned up and spread al over the internet?
McConnell is as savvy a politician as exists. He judged that the blowback to the GOP nationally for having someone with those kind of allegations against him in the Senate was not worth the single extra vote Moore would provide. You can hate him for that, but he didn't do it because he hates conservatives.
McConnell is an opportunist. Nothing savvy about him. He's done nothing but politics since he graduated from UofL Law School in 1964. It's all about power and the retention of power with him. He's not interested in the TEA Party and real Conservatives anymore than he was really truly interested in repealing Obama care "root and branch" if the Republicans had the majority in the Senate again.
There have been calls by Senate conservatives going back 6 years to replace him...before Trump took office because of the backroom games he plays and how he lies to his own members in the Senate.
Ted Cruz called him out for being a liar. Mitch didn't want Moore's vote because he doesn't want Conservative/TEA Party types in the Senate.