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Tutorials:
Tracking ALEC “model legislation” through real legislatures: how to obtain copies of ALEC model legislation
Federal lobby disclosure resources:
Clerk of the U.S. House of Representatives
U.S. Senate Office of Public Records
Federal legislative resources:
Thomas, U.S. Library of Congress
U.S. House of Representatives Office of the Law Revision Council: U.S. Code
Campaign finance and elections:
Center for Responsive Politics: OpenSecrets.org (federal data)
National Institute on Money in State Politics: Followthemoney.org (state-level data)