Tim Kaine says Donald Trump’s refusal to release his tax returns fails to clear even the low ethical bar set by Richard Nixon as a candidate. But Kaine gets some history wrong.
Q: Can a president issue a blanket pardon to an individual for crimes that may have been committed in the past but have not yet been discovered?
A: Yes. That’s just what Gerald Ford did when he granted "a full, free, and absolute pardon" to Richard Nixon for crimes he "has committed or may have committed" while in office.