they are working up the chain.
huma’s marching orders were probably to say “i do not recall” as much as possible (which is nearly all the time given the current state of the federal government). and her ace in the hole would be something like “i fell down the stairs this morning and feel dizzy” which worked so well for hillary.
iirc watergate investigators worked up the food tree as well.
iow we should not give up yet, but recall that hillary once worked on the prosecutorial side in the watergate investigations, so she probably knows the offense strategy well and is braced for it as much as possible, and has also coached her munchkins on it as well.
DRIP, DRIP, DRIP!!!!!! this entire story WILL BE LEAKED!!!! DEMS will be scampering!!!