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- Trump's team has claimed he has immunity from criminal prosecution over his actions when he was in office.
- An appeals-court judge stress-tested that argument Tuesday by posing a series of wild hypotheticals.
- Trump's lawyer said a president couldn't be prosecuted over an assassination if Congress were OK with it.
Former President Donald Trump's attorney on Tuesday argued that a president could order the assassination of his political rival and couldn't be prosecuted for it — unless Congress impeached and convicted that commander in chief first.