Well, I think Haley should stay in, basically for the reason I already brought up, so female Republican voters can cast a vote for someone other than a guy found liable for rape and defaming his rape victim. You know, so they have another choice in the primary other than the "Grab 'em by the pussy!" guy. 

The reason for the attempt to force Haley out early was Trump did not like money being donated to her, he wants all the money coming in for himself, hence why he threatened anybody that donated to Haley with being forever cast out from MAGA world. He wants all cash to go to him...every last penny as new RNC chair Lara Trump just announced. That's it. 

He's not concerned about Haley beating him nor does he feel threatened by her, he just wants whatever cash she is getting to go to him. 

Trump got Ronna McDaniel pushed out because she was not enough of a Trump toady for him and she might actually try to spend money the RNC was getting to do her job and help all Republican candidates in the election cycle. So now he's got Eric's wife in there to divert "every penny" to him. This is always what it is about with Trump, the money. So, with Lara doing her thing, the RNC probably gets even nastier toward Haley and wanting her out, 

Never mind the voting, now that Lara Trump is running the RNC, the only Republican candidate is Donald Trump. It makes it totally official, the party is now owned and operated by Donald Trump and like everything else he has run, it will fail spectacularly.