“No power but Congress can declare war, but what is the value of this constitutional provision, if the President of his own authority may make such military movements as must bring on war?” IfsMayWarValuesPeacePresidentMilitaryMovementAuthorityCongressAntiwarProvision Book:Dinner to the Hon. D. W. ... by the merchants, and other citizens of Philadelphia, December 2, 1846, with Mr. W.'s speech Source: Dinner to the Hon. D. W. ... by the merchants, and other citizens of Philadelphia, December 2, 1846, with Mr. W.'s speech