Given sites like https://www.opensecrets.org/lobby/lobby_contribs.php https://www.opensecrets.org/lobby/lobby_contribs.php that document the campaign contributi

Given sites like https://www.opensecrets.org/lobby/lobby_contribs.php https://www.opensecrets.org/lobby/lobby_contribs.php that document the campaign contributions of lobbyists, I'm going to want a reference to the legal definition of lobbying that excludes campaign contributions.