I mean, this is one of those cases where, if allegations turn out to be sufficiently established to order a new election (which would seem to be the only reasonable remedy at this point), somebody better go to prison. Because the allegations are those of very serious electoral fraud, and it will not be sufficient to leave them underinvestigated. I mean, I generally agree that only very serious and proven misconduct should be grounds for annulling electoral results at this stage. The allegations, clearly, raise to the former standard - but I want to see them proven in court.
Those tweets indicate that a woman is already being identified in photographs. So yeah they got a suspect. Of course she's probably just small time and should plead to turn in the real villains.
Knowing how the last few years have gone, it will eventually come out that every senior Republican official in the country and their mother has met with this woman at some point or another, that she has received secret payments for thousands of dollars, and had a backdoor liaison at the Russian Embassy.