The immense powers of the executive branch create a temptation for presidents to rule unilaterally—at the margins of Congress and the judiciary. Presidents who find their agenda stalled can circumvent the legislature by issuing executive orders, proclamations, directives, executive agreements, or presidential memoranda, which can assume the weight of law without the endorsement of Congress. The Constitution does not prohibit such action. Likewise, presidents can circumvent the judiciary, either by refusing to abide by court rulings, as Lincoln did when the Supreme Court rejected his suspension
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