They have to get all the 'flotsam' out there. . .and think that is what Bernstein is doing. If it rises to the top; they can deal with it; if it rises and they cannot make it go away; they will have a 'plan B' to take care of it.
And of course, Hillary can respond. . .that is old news and even older rumors spread by VRWC.
But whatever the case; Hillary has to test the waters; because she believes she can walk on it.
There's still plenty of 'flotsam' that the large majority of the electorate have never been informed of, due largely to her protection by the MSM.
One of the biggest pieces is the role of Huma Abedin in Her Royal Thighness' entourage. Lesbian lover? Saudi agent? Pro-Islamic Middle East advisor? Any of these or any combination of them are plausible, and if true, should disqualify her from the presidency, if the electorate cares to see and think.