OCTOBER TERM, 1975 Per Curiam 424 U. S. $1,000 ceiling applies regardless of whether the contribution is given to the candidate, to a committee authorized in writing by the candidate to accept contributions on his behalf, or indirectly via earmarked gifts passed through an intermediary to the candidate. §§ 608 (b) (4), (6).25 The restriction applies to aggregate amounts contributed to the candidate for each election-with primaries, runoff elections, and general elections counted separately, and all Presidential primaries held in any calendar year treated together as a single election campaign. § 608 (b) (5). Appellants contend that the $1,000 contribution ceiling unjustifiably burdens First Amendment freedoms, employs overbroad dollar limits, and discriminates against candidates opposing incumbent officeholders and against minor-party candidates in violation of the Fifth Amendment. We address each of these claims of invalidity in turn. (a) As the general discussion in Part I-A, supra, indicated, the primary First Amendment problem raised by the Act's contribution limitations is their restriction of one aspect of the contributor's freedom of political associJennings, 366 F. Supp. 1041, 1055-1057 (DC 1973) (three-judge court), vacated as moot sub nom. Staats v. American Civil Liberties Union, 422 U. S. 1030 (1975). The use of the phrase presents fewer problems in connection with the definition of a contribution because of the limiting connotation created by the general understanding of what constitutes a political contribution. Funds provided to a candidate or political party or campaign committee either directly or indirectly through an intermediary constitute a contribution. In addition, dollars given to another person or organization that are earmarked for political purposes are contributions under the Act. 25 Expenditures by persons and associations that are "authorized or requested" by the candidate or his agents are treated as contributions under the Act. See n. 53, infra.

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