One of the prime concerns was the Lochner era decisions of the US Supreme Court to strike down legislation passed by state governments and the Federal government for social and economic improvement, such as the eight-hour day or the right to join a trade union.
其中一個主要的擔憂是洛克納時代，美國最高法院作出的決定，推翻了由州政府和聯邦政府通過的促進社會和經濟進步的立法提案，如八小時工作日或加入工會的權力。