delivered the opinion of the Court.
This case here on appeal under 28 U. S. C. § 1257 raises questions concerning the constitutional power of a state to apply its anti-trade-restraint law 1 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 *492 law. The picketing occurred in Kansas City, Missouri. The injunction was issued by a Missouri state court.
The appellants are members and officers of the Ice and Coal Drivers and Handlers Local Union No. 953, affiliated with the American Federation of Labor. Its membership includes about 160 of 200 retail ice peddlers who drive their own trucks in selling ice from door to door in Kansas City. The union began efforts to induce all the nonunion peddlers to join. One objective of the organizational drive was to better wage and working conditions of peddlers and their helpers. Most of the nonunion peddlers refused to join the union. To break down their resistance the union adopted a plan which was designed to make it impossible for nonunion peddlers to buy ice to supply their retail customers in Kansas City. Pursuant to the plan the union set about to obtain from all Kansas City wholesale ice distributors agreements that they would not sell ice to nonunion peddlers. Agreements were obtained from all distributors except the appellee, Empire Storage and Ice Company. Empire refused to agree. The union thereupon informed Empire that it would use other means at its disposal to force Empire to come around to the union view. Empire still refused to agree. Its place of business was promptly picketed by union members although the only complaint registered against Empire, as indicated by placards carried by the pickets, was its continued sale of ice to nonunion peddlers.
Thus the avowed immediate purpose of the picketing was to compel Empire to agree to stop selling ice to nonunion peddlers. Missouri statutes, set out in note 1, make such an agreement a crime punishable by a fine of not more than $5,000 and by imprisonment in the penitentiary for not more than five years. Furthermore, under § 8308 of the Missouri Revised Statutes Ann. *493 (1939), had Empire made the agreement, the ice peddlers could have brought actions for triple damages for any injuries they sustained as a result of the agreement.
About 85% of the truck drivers working for Empire’s customers were members of labor unions. These union truck drivers refused to deliver goods to or from Empire’s place of business. Had any one of them crossed the picket line he would have been subject to fine or suspension by the union of which he was a member.
Because of the foregoing facts shown either by admissions, by undisputed evidence, or by unchallenged findings, the picketing had an instantaneous adverse effect on Empire’s business. It was reduced 85%. In this dilemma, Empire was faced with three alternatives: It could continue to sell ice to nonunion peddlers, in which event it would be compelled to wage a fight for survival against overwhelming odds; it could stop selling ice to nonunion peddlers thereby relieving itself from further conflict with the union, in which event it would be subject to prosecution for crime and suits for triple damages; it could invoke the protection of the law. The last alternative was adopted.
Empire’s complaint charged that the concerted efforts of union members to restrain Empire from selling to nonunion members was a violation of the anti-trade-restraint statute and that an agreement by Empire to refuse to make such sales would violate the same statute. It prayed for an injunction against the picketing. In answering, appellants asserted a constitutional right to picket Empire’s premises in order to force it to discontinue sale of ice to nonunion peddlers. They contended that their right to do so was “guaranteed by the First and Fourteenth Amendments” because there was “a labor dispute existing” between appellants and appellee, and because the picketers publicized only the truthful infor *494 mation that appellee was “selling ice to peddlers who are not members of the said defendants’ union.”
The trial court heard evidence, made findings and issued an injunction restraining the appellants from “placing pickets or picketing around or about the buildings” of Empire.
The State Supreme Court affirmed.
In this Court appellants do not raise problems similar to those discussed in
Near
v.
Minnesota,
*495
First.
That states have constitutional power to prohibit competing dealers and their aiders and abettors from combining to restrain freedom of trade is beyond question.
Watson
v.
Buck,
Second. It is contended that though the Missouri statute can be applied validly to combinations of businessmen who agree not to sell to certain persons, it cannot be applied constitutionally to combinations of union workers who agree in their self-interest to use their' joint power to prevent sales to nonunion workers. This contention appears to be grounded on the guaranties of freedom of speech and press stemming from the Fourteenth and First Amendments. Aside from the element of disseminating information through peaceful picketers, later discussed, it is difficult to perceive how it could be thought that these constitutional guaranties afford labor union members a peculiar immunity from laws against trade restraint combinations, unless, as appellants contend, labor unions are *496 given special constitutional protection denied all other people. 2
The objective of unions to improve wages and working conditions has sometimes commended itself to Congress and to state legislatures. To the extent that the states or Congress, for this or other reasons, have seen fit to exempt unions from antitrust laws, this Court has sustained legislative power to grant the exemptions.
International Harvester Co.
v.
Missouri,
*497
The foregoing holdings rest on the premise that legislative power to regulate trade and commerce includes the power to determine what groups, if any, shall be regulated, and whether certain regulations will help or injure businessmen, workers, and the public in general.
3
In making this determination Missouri has decided to apply its law without exception to
all
persons who combine to restrain freedom of trade. We are without constitutional authority to modify or upset Missouri’s determination that it is in the public interest to make combinations of workers subject to laws designed to keep the channels of trade wholly free and open. To exalt all labor union conduct in restraint of trade above all state control would greatly reduce the traditional powers of states over their domestic economy and might conceivably make it impossible for them to enforce their anti-trade-restraint laws. See
Allen Bradley Co.
v.
Union,
Third.
It is contended that the injunction against picketing adjacent to Empire’s place of business is an unconstitutional abridgment of free speech because the
*498
picketers were attempting peacefully to publicize truthful facts about a labor dispute. See
Thornhill
v.
Alabama,
It rarely has been suggested that the constitutional freedom for speech and press extends its immunity to speech or writing used as an integral part of conduct in violation of a valid criminal statute. We reject the contention now. Nothing that was said or decided in any of the cases relied on by appellants calls for a different holding.
Neither
Thornhill
v.
Alabama, supra,
nor
Carlson
v.
California,
“The conditions developed in industry may be such that those engaged in it cannot continue their struggle without danger to the community. But it is not for judges to determine whether such conditions exist, nor is it their function to set the limits of permissible contest and to declare the duties which the new situation demands. This is the function of the legislature which, while limiting individual and group rights of aggression and defense, may substitute processes of justice for the more primitive method of trial by combat.”
After emphasizing state power over industrial conflicts, the Court in the Thornhill opinion went on to say, at p. 104, that states may not “in dealing with the evils arising from industrial disputes . . . impair the effective exercise of the right to discuss freely industrial relations . . . .” This statement must be considered in its context. It was directed toward a sweeping state prohibition which this Court found to embrace “nearly every practicable, effective means whereby those interested— including the employees directly affected — -may enlighten the public on the nature and causes of a labor dispute.” *500 That the general statement of the limitation of a state’s power to impair free speech was not intended to apply to the fact situation presented here is further indicated by the cases cited with approval in note 21 of the Thornhill opinion. 4
Appellants also rely on
Carpenters Union
v.
Ritter’s Cafe,
*501 “A state is not required to tolerate in all places . . . even peaceful picketing by an individual.” A concurring opinion in the Wohl case, at pp. 776-777, pointed out that picketing may include conduct other than speech, conduct which can be made the subject of restrictive legislation. No opinions relied on by petitioners assert a constitutional right in picketers to take advantage of speech or press to violate valid laws designed to protect important interests of society. 5
We think the circumstances here and the reasons advanced by the Missouri courts justify restraint of the picketing which was done in violation of Missouri’s valid law for the sole immediate purpose of continuing a violation of law. In holding this, we are mindful of the essential importance to our society of a vigilant protection of freedom of speech and press.
Bridges
v.
Cali
fornia,
The interest of Missouri in enforcement of its antitrust laws cannot be classified as an effort to outlaw only a slight public inconvenience or annoyance. The Missouri policy against restraints of trade is of long standing and is in most respects the same as that which the Federal Government has followed for more than half a century. It is clearly drawn in an attempt to afford all persons an equal oppor
*503
tunity to buy goods. There was clear danger, imminent and immediate, that unless restrained, appellants would succeed in making that policy a dead letter insofar as purchases by nonunion men were concerned. Appellants’ power with that of their allies was irresistible. And it is clear that appellants were doing more than exercising a right of free speech or press.
Bakery Drivers Local
v.
Wohl,
What we have said emphasizes that this is not a case in which it can be assumed that injury from appellants’ conduct would be limited to this single appellee.
Thornhill
v.
Alabama,
While the State of Missouri is not a party in this case, it is plain that the basic issue is whether Missouri or a labor union has paramount constitutional power to regulate and govern the manner in which certain trade practices shall be carried on in Kansas City, Missouri. Missouri has by statute regulated trade one way. The appellant union members have adopted a program to regulate it another way. The state has provided for enforcement of its statutory rule by imposing civil and criminal sanctions. The union has provided for enforcement of its rule by sanctions against union members who cross picket lines. See
Associated Press
v.
United States,
Affirmed.
Notes
“Combinations in restraint of trade declared a conspiracy
“Any person who shall create, enter into, become a member of or participate in any pool, trust, agreement, combination, confederation or understanding with any person or persons in restraint of trade or competition in the importation, transportation, manufacture, purchase or sale of any product or commodity in this state, or any article or thing bought or sold whatsoever, shall be deemed and adjudged guilty of a conspiracy in restraint of trade, and shall be punished as provided in this article.” Mo. Rev. Stat. Ann. §8301 (1939).
And § 8305 provides that anyone violating § 8301 “shall be adjudged guilty of a felony, and upon conviction thereof shall be punished by imprisonment in the penitentiary not exceeding five years, or by imprisonment in the county jail not exceeding one year, or by a fine of not less than five hundred dollars nor more than five thousand dollars, or by both such fine and imprisonment.” Mo. Rev. Stat. Ann. § 8305 (1939).
Appellants say, after quoting from a concurring opinion in
United States
v.
Hutcheson,
In the
International Harvester Co.
case,
Eastern States Lumber Dealers
v.
United States,
The cases cited in note 21 of the
Thornhill
opinion include the following, strongly emphasizing states’ powers to regulate their internal industrial and economic affairs and rejecting contentions that challenged regulations violated the Federal Constitution.
Senn
v.
Tile Layers Union,
Both parties here rely on the
Ritter
case. Empire contends that this Court affirmed the action of the Texas courts on the basis of the state’s antitrust law. Appellants argue that this Court upheld the Texas injunction on the ground that the business picketed did not bear a sufficiently close relation to the labor dispute to justify picketing at that place. Since the Court relied on this ground, appellants contend that the Court impliedly rejected the contention that the injunction was justified because of an alleged violation of the antitrust laws. This Court’s opinion in the
Ritter
case, as well as the dissents, did emphasize questions other than the antitrust act contentions. The Court of Civil Appeals of Texas had not mentioned the Texas antitrust laws in its first or second opinion in the
Ritter
case.
“Picketing by an organized group is more than free speech, since it involves patrol of a particular locality and since the very presence of a picket line may induce action of one kind or another, quite irrespective of the nature of the ideas which are being disseminated. Hence those aspects of picketing make it the subject of restrictive regulation.” Bakery Drivers Local v. Wohl, supra, at 776-777.
The opinion in
Thomas
v.
Collins,
A concurring opinion in Thomas v. Collins, at 543-544, stated this: “But once he uses the economic power which he has over other men and their jobs to influence their action, he is doing more than exercising the freedom of speech protected by the First Amendment. That is true whether he be an employer or an employee. But as long as he does no more than speak he has the same unfettered right, no matter what side of an issue he espouses.”
