美国联邦政府的规模和权力直到20世纪30年代才开始缓慢扩大，当时，为了应对大萧条，美国实施了罗斯福新政，包括大量的联邦计划、公共工程项目以及金融改革和监管。
The US federal government’s size and power grew only very slowly until the 1930s, when the New Deal – which included federal programs, public works projects, and financial reforms and regulations – was implemented in response to the Great Depression.