McConnell being upset is indeed correct but all of the rest of it is false. The NRSC is the National Republican Senatorial Committee - that “Committee” is the incumbent Republican US Senators. They have always supported their own members, long before the 2012 incident.
Should be no senatorial primaries!
Repeal the 17th Amendment!
Let the state legislatures Puck the Senators as Founding Fathers intended. They really couldn’t do worse!
You are correct. Which is why Cornyn funded Murkowski, and Scott endorsed Murkowski, and Rand Paul endorsed McConnell,and Richard Lugar endorsed his buddy Sam Nunn’s daughter (though a Democrat) and John Warner endorsed Mark Warner (though a Democrat), and on and on.