Notice on the Continuation of the National Emergency With Respect to Foreign Interference In or Undermining Public Confidence in...
On September 12, 2018, by Executive Order 13848, the President declared a national emergency pursuant to the International Emergency Economic Powers Act (50 U.S.C. 1701 et seq.) to deal with the unusual and extraordinary threat to the national security and...
It goes to Congress where they limit the number of times Presidents can claim a National Emergency....
Not sure of the time stamp, could be anywhere between Civil War and WW II....
But it definitely came from Congress....