a split: is their a parting on the right? Is there a parting on the left?

Republican Campaign Committee Pushes Back Against Conservative Group

In a warning shot to outside conservative groups, the National Republican Senatorial Committee this week informed a prominent Republican advertising firm that it would not receive any contracts with the campaign committee because of its work with a group that targets incumbent Senate Republicans.

Even more striking, a senior official at the committee called individual Republican Senate campaigns and other party organizations this week and urged them not to hire the firm, Jamestown Associates, in an effort to punish them for working for the Senate Conservatives Fund, a group founded by Jim DeMint, then a South Carolina senator, that is trying to unseat Senator Mitch McConnell of Kentucky, the Republican leader, and some other incumbents up for re-election next year whom it finds insufficiently conservative.

“We’re not going to do business with people who profit off of attacking Republicans,” said Brad Dayspring, a spokesman for the committee. “Purity for profit is a disease that threatens the Republican Party.”
...
And on Friday, one of Mr. McConnell’s closest aides offered a vivid metaphor about the leader’s determination.

“S.C.F. has been wandering around the country destroying the Republican Party like a drunk who tears up every bar they walk into,” said Josh Holmes, Mr. McConnell’s chief of staff, now detailed to the National Republican Senatorial Committee through the election. “The difference this cycle is that they strolled into Mitch McConnell’s bar and he doesn’t throw you out, he locks the door.”