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"That's because the vice president frequently serves as one of the president's closest advisors. So these private conversations would not be able to be used as evidence. Now, some people are remarking back to the Nixon tapes, and if the Nixon, if that whole Watergate system thing happened again tomorrow, those tapes would not be able to be admissible into the court as evidence. And then there was one more caveat to this, and Justice Roberts wrote that quote."