1) McConnell is appealing the ruling of the parliamentarian to the president of the Senate (Pence).
2) Pence will overrule the parliamentarian,
3) then the Senate votes to accept Pence's overrule.
4) Then they revote the cloture vote with a 51-vote threshold.
-PJ
Pence puts the question, should the decision of the chair (rejecting McConnell) be upheld.
The only ramification of the chair supporting or rejecting McConnell's motion is the phrasing of the "nuclear" question, and the historical position of the parliamentarian in this theater.