Yes, he will. Run a search on the Supreme Court's decision in Powell v. McCormack.
That was a sticking point for me in the article, but the rest was a pleasure to read.
Agree, if he wins, the senate will be hard pressed to find the votes to not seat him. (They need a two thirds vote — when have they ever voted like that? And for the accusation of sexual misconduct 38 years ago? The senate probably has a dozen members worried that accusations about them for more severe actions in the recent past are about to fall. It would not help them in their case to not seat an individual voted in by a majority of the voters in his state. In fact it would encourage the senate to unseat them too. And for the sake of accusations? What about finding out the truth?
BTW, if they do an investigation and find the truth, then we can talk about what they should do. Not now, how many times do we need to find that accusations and good presentation do not mean that the accusations are valid.