In his books "The Supreme Court and the Idea of Progress" and "The Morality of Consent", Bickel attacked the Warren Court for what he saw as its misuse of history, shoddy reasoning, and sometimes arbitrary results. Bickel thought that the Warren Court's two most important lines of decision, "Brown v. Board of Education" and "Baker v. Carr", did not produce the results the court had intended. In his book "The Least Dangerous Branch", Bickel coined the term "countermajoritarian difficulty" to describe his view that judicial review stands in tension with democratic theory.