11/17/1936
https://www.presidency.ucsb.edu...
"the time has come for the Congress to enact legislation aimed at the prevention of profiteering in time of war."
"Well, so that the whole nation will engage in war if we unfortunately have one."
"That's it—mobilization."
"By virtue of and pursuant to the authority vested in me as President of the United States, and in order to effectuate further the purposes of the Migratory Bird Conservation Act."