The Democrats and media (redundant) are using the Clinton playbook for a scandal. Ignore it. Deny it. Smear the accuser. Minimally report it at a time and place that it is least noticed. Respond that it has already been thoroughly addressed and “let’s move on to important things”. After all, “what difference does it make now”.
The average low-information voter will hear nothing of the allegations or else will hear that all the “smart people” know the allegations are false.