Having two houses was intended to serve as a brake on popular movements that might threaten particular groups, with the United States House of Representatives representing the common people and the United States Senate defending the interests of the state governments. The House was to be elected by popular vote, and the Senate was to be chosen by state legislatures. The executive veto and the implied power of judicial review, which was later made explicit by the Supreme Court of the United States, created further obstacles to absolute majority rule; with the rise of the Warren Court in the 1960s and its establishment of a precedent of one man, one vote, judicial review was used to strike down most of the obstacles to absolute majority rule by declaring such measures unconstitutional.