EASTERN RAILROAD PRESIDENTS CONFERENCE et al. v. NOERR MOTOR FREIGHT, INC., et al.

Whether an agreement between two local newspapers to cease competition, fix prices and pool profits violated the Sherman Antitrust Act

Whether an injunction against a newspaper publisher's attempt to monopolize interstate commerce violates the freedom of the press guaranteed by the First Amendment.

"This case . . . raises questions concerning the constitutional power of a state to apply its antitrade restraint law to labor union activities, and to enjoin union members from peaceful picketing carried on as an essential and inseparable part of a course of conduct which is in violation of the state law. The picketing occurred in Kansas City, Missouri. The injunction was issued by a Missouri state court."