Definitely get Hillary on record, better yet on TV, saying “I don’t recall” over and over. During the Clinton administration, Republicans allowed more than 50 witnesses about his corruption, especially the Chinese funny money, send a letter from their lawyers saying that they would plead the fifth. Just imagine the videos we could be seeing over and over with witness after witness pleading the fifth.
The video of her saying “ I can’t remember” would make part of a good anti-Democrat campaign ad.
Run that footage, and at the end ask “do we want this person to be president?”