>>6012373
Evidence produced via illegal FISA warrants CAN because that is in itself a crime.
And from there, all information produced 'from' those FISA warrants can then be used as evidence of the predicate infraction.
Thus, the theory that they were intentionally allowed to stay 'active' and keep renewed 3 times, when the first alone was enough to show no evidentiary reason to continue them.
Currently, as it stands 'right now' you are correct and the evidence will not be admissable. That said, the moment that those FISA's are deemed to have been improper and illegal (fraud on the FISC court) then the whole mountain becomes fair game.
Because those FISA's and all data gathered via the warrants become evidence of the fraud. And, as already mentioned, any crimes uncovered in the investigation 'of' a crime can also be fully investigated and prosecuted, utilizing all current and future gathered information.