For over 30 years, Associate Supreme Court Justice William Brennan was among the most influential members of the U.S. Supreme Court.
Appointed by President Dwight Eisenhower in 1956, he and Earl Warren led the court’s “liberal wing” through the 1960s. Brennan’s background was somewhat unusual in that his prior judicial experience occurred not in the federal courts, but on the New Jersey Supreme Court.
As the U.S. Supreme Court became more conservative, Brennan began urging lawyers and other advocates of individual liberty to pursue what he called a “new Federalism.”