This is a problem, and they no it.
The usual strategy with this story is to deflect by using the words "Monica" and "consensual." The more often that Donald Trump (or whomever) brings the topic back to Juanita Broaddrick, the more difficult it is going to be for honest liberals (believe it or not, there are many) to play along with that deflection.
The only solution that I can see is for Hillary Clinton to try to move her narrative away from women's issues. She has that vote anyway. Attacking Broaddrick is a no win proposition.
Dems will work very hard to find a woman to accuse Trump of something from his past.
HMMMmmm...
What cabinet position would SHE be up for??