BUCKLEY v. VALEO Per Curiam The Court of Appeals, in sustaining the legislation in large part against various constitutional challenges,' viewed it as "by far the most comprehensive reform legislation [ever] passed by Congress concerning the election of the President, Vice-President, and members of Congress." 171 U. S. App. D. C. 172, 182, 519 F. 2d 821, 831 (1975). The statutes at issue summarized in broad terms, contain the following provisions: (a) individual political contributions are limited to $1,000 to any single candidate per election, with an overall annual limitation of $25,000 by any contributor; independent expenditures by individuals and groups "relative to a clearly identified candidate" are limited to $1,000 a year; campaign spending by candidates for various federal offices and spending for national conventions by political parties are subject to prescribed limits; (b) contributions and expenditures above certain threshold levels must be reported and publicly disclosed; (c) a system for public funding of Presidential campaign activities is established by Subtitle H of the Internal Revenue Code;' and (d) a Federal Election Commission is established to administer and enforce the legislation. This suit was originally filed by appellants in the United States District Court for the District of Columbia. Plaintiffs included a candidate for the Presidency of the United States, a United States Senator who is a candidate for re-election, a potential contributor, the 2 171 U. S. App. D. C. 172, 519 F. 2d 821 (1975). 3 The Revenue Act of 1971, Title VIII, 85 Stat. 562, as amended, 87 Stat. 138, and further amended by the Federal Election Campaign Act Amendments of 1974, § 403 et seq., 88 Stat. 1291. This Subtitle consists of two parts: Chapter 95 deals with funding national party conventions and general election campaigns for President, and Chapter 96 deals with matching funds for Presidential primary campaigns.

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