BUCKLEY v. VALEO 1 Per Curiam 820 (1975); New York Times Co. v. Sullivan, supra, at 266. For example, in Cox v. Louisiana, 379 U. S. 559 (1965), the Court contrasted picketing and parading with a newspaper comment and a telegram by a citizen to a public official. The parading and picketing activities were said to constitute conduct "intertwined with expression and association," whereas the newspaper comment and the telegram were described as a "pure form of expression" involving "free speech alone" rather than "expression mixed with particular conduct." Id., at 563-564. Even if the categorization of the expenditure of money as conduct were accepted, the limitations challenged here would not meet the O'Brien test because the governmental interests advanced in support of the Act involve ''suppressing communication." The interests served by the Act include restricting the voices of people and interest groups who have money to spend and reducing the overall scope of federal election campaigns. Although the Act does not focus on the ideas expressed by persons or groups subject to its regulations, it is aimed in part at equalizing the relative ability of all voters to affect electoral outcomes by placing a ceiling on expenditures for political expression by citizens and groups. Unlike O'Brien, where the Selective Service System's administrative interest in the preservation of draft cards was wholly unrelated to their use as a means of communication, it is beyond dispute that the interest in regulating the alleged "conduct" of giving or spending money "arises in some measure because the communication allegedly integral to the conduct is itself thought to be harmful." 391 U. S., at 382. Nor can the Act's contribution and expenditure limitations be sustained, as some of the parties suggest, by reference to the constitutional principles reflected in such

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