This Nation
This nation.com: u.s. Supreme Court: Buckley v. Valeo, 424 u.s. 1 (1976)
This appeal filed in the U.S. Supreme Court describes the expressed powers of Congress to oversee the elections of President, Vice-President and Congress.
Other
The Federal Election Campaign Laws: A Short History
A short history of the Federal Election Campaign Laws beginning before the 1971 laws and continuing through the Federal Election Campaign Act of 1971 and the Amendments of 1974, 1976, and 1979.