Building Construction Trades Council v. American Builders, Inc.

May a state court enjoin a labor union in its resort to coercive measures (striking, peaceful picketing and supplementary activities, in this case) to wring from an employer whose operation affects commerce a closed-shop agreement, and thereby force non-union employees to become members of the union where compliance with such union demands would collide with express prohibitions of the Labor Peace Act (C.R.S. ’53, 80-5-1, et seq.) of this state? If such power reposes in the state court, we must affirm the injunction entered in this case; if not, we must reverse. To affirm or reverse the…