The two correct rhetorical techniques demonstrated in the passage are:
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Hyperbole - The phrase "abandoned to a 20th-century paper shredder" is an exaggerated expression that emphasizes the seriousness of the situation regarding the Constitution and its relevance.
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Rhetorical conditional - The phrase "if the impeachment provision in the Constitution... then perhaps that 18th-century Constitution should be abandoned..." sets up a conditional scenario to provoke thought and emphasize the importance of the impeachment provision.
So, the correct answers are hyperbole and rhetorical conditional.