Donald Trump has taken extraordinary actions to redirect or ignore congressional appropriations, from dismantling foreign aid to making the Education Department a ghost town. But how unique are Trump’s efforts to avoid spending when he does not favor it? Kevin Angell compares what Congress appropriated to what agencies actually spent over decades, finding that presidents have long moved spending toward their preferences. Even after impoundment controls, presidents found ways of not spending money they never requested from Congress. Trump is more blatant and could be more extreme, but administrations have long used their tools to obtain some power of the purse from Congress.