Truth-in-Lobbying Disclosure Act - Amends the Lobbying Disclosure Act of 1985 to require a registered lobbyist's semiannual report to the Secretary of the Senate and the Clerk of the House of Representatives to include any federal funds received by the client (other than a state), through grants, contracts, or otherwise, during such reporting period, including funds received by reason of a provision in an appropriations Act that specifies: (1) an entity to receive funds and their amount; or (2) a project to be carried out in the district that a Representative in Congress, or the state that a Senator, represents.