[Verginius Rufus]

It's all in keeping with the American legal maxim about "guilty until proven innocent."

Even if Moore wins the election, McConnell can refuse to let him take the seat (as long as he can round up enough other senators to play along, which should not be difficult).

[MortMan]

McConnell can only refuse to seat based on qualifications, not over issues like this, per court precedent, I believe.