Democrats have already set the precedent that accusations matter more than proof. Accusations like this against a sitting Senator merits an inquiry by the Senate Ethics Committee
But don't expect to hear anything soon, too close to the election.
If the Democrats take the Senate, these allegations will vanish like a fart in the wind
If the Republicans keep the Senate, Cocaine Mitch is going to hold this in his pocket and slow roll Booker's re-election in 2020