In Everson v. Board of Education (1947), the Court drew on Thomas Jefferson's correspondence to call for "a wall of separation between church and State", though the precise boundary of this separation remains in dispute.
Dalam kasus Everson v. Board of Education (1947), Mahkamah Agung AS menggunakan korespondensi Thomas Jefferson untuk menyerukan pendirian "tembok pemisahan antara gereja dengan negara", walaupun batas persisnya masih diperdebatkan.