Except now that hearsay is in the record of a federal court!
It is double hearsay. On the tape played in court “Blixseth says, Montgomery told him...” This is worthless because it is hearsay evidence, (IANAL) but it is in the court record for any future lawyers to use to haul in other witnesses for depositions and to issue blanket subpoenas etc.
Zullo may also be protecting himself and Arpaio by getting this Birther stuff out there in the open NOW! It could be a very SLY MOVE by the two of them which the other side didn’t expect and might have been trying to prevent.
The other side might have been hoping that Zullo would continue to plead the 5th to save his skin from any criminal prosecution, which would have been the smart thing to do, as any criminal lawyer would have told him, I expect.
I think the fact that Zullo is talking at all might be proof that Zullo is a patriot. Others will insist he is just stupid, of course.
the discovery that the birth certificate was a fraud (even though it wasn't discoverecby Zullo or Arpaio but rather a guy who deconstructed it with Adobe Illustrator) would have resulted in impeachment of any other white president after they gathered the evidence and witnesses (if they weren't dead which seems to be a popular theme with this president)