Because the Founders had to travel to and from the national capital by horse, they also granted the President the power “to fill up all Vacancies that may happen during the Recess of the Senate.” ...

When President Dwight Eisenhower appointed William Brennan to the Supreme Court in 1956, the Senate was in recess. Eisenhower made the appointment unilaterally, in accordance with the Constitution ...

Congress has the sole constitutional power to declare war, even if presidents frequently usurp that authority. It can fire ...