The Trump campaign already released a statement, based on leaked talking points from the MSM. They're going with the "red mirage" gambit.
I suspect that Trump might "win" tonight but the MSM will claim that millions of mail-in ballots still need to be counted. If this happens, Trump will have 2 options:
1) Allow the election to continue for weeks and months while the Democrats "discover" boxes of mail-in ballots until literally every state "mysteriously" flips blue.
2) Call the election and the narrative about how he "stole it" begins in earnest.
Even if Trump wins, if the dems win the house and senate, they'll just impeach him and remove him from office for "election fraud"