The commerce clause may be violated if the effect is discrimination. "It is the effect upon commerce, not the source of the injury, which is the criterion." -

The commerce clause may be violated if the effect is discrimination. "It is the effect upon commerce, not the source of the injury, which is the criterion." - N.L.R.B. v. JONES & LAUGHLIN STEEL CORP., 301 U.S. 1 (1937) [http://laws.findlaw.com/us/301/1.html http://laws.findlaw.com/us/301/1.html]