If it is Manafort and I were his lawyer I demand immediate handover of all evidence. If the evidence traces back to the wiretaps I demand the presentations to FISC to see if the FBI presented the dossier as their probable cause. If so then move to preclude any evidence that emanates from the dossier.
I’ve speculated here that Manafort may be shielded from prosecution on many charges simply because the process of securing a FISA warrant and conducting such questionable surveillance against him might compromise any criminal case.