structural:expansion
Legacy

Marbury also established that the power of judicial review covers actions by the executive branch —the President and his cabinet members. However, American courts' power of judicial review over executive branch actions only extends to matters in which the executive has a legal duty to act or refrain from acting, and does not extend to matters that are entirely within the President's discretion, such as whether to veto a bill or whom to appoint to an office. This power has been the basis of later important Supreme Court decisions. In its 1974 decision United States v. Nixon, for example, the Supreme Court held that President Richard Nixon had to comply with a subpoena to provide tapes of his conversations for use in a criminal trial related to the Watergate scandal, which ultimately led to Nixon's resignation.