To date, U.S. courts have overturned only two executive orders: the aforementioned Truman order, and a 1995 order issued by President Clinton that attempted to prevent the federal government from contracting with organizations that had strike-breakers on the payroll.[8] Congress was able to overturn an executive order by passing legislation in conflict with it during the period of 1939 to 1983 until the Supreme Court ruled in Immigration and Naturalization Service v. Chadha that the "legislative veto" represented "the exercise of legislative power" without "bicameral passage followed by presentment to the President."[9] The loss of the legislative veto has caused Congress to look for alternative measures to override executive orders such as refusing to approve funding necessary to carry out certain policy measures contained with the order or to legitimize policy mechanisms. In the former, the president retains the power to veto such a decision; however, the Congress may override a veto with a two-thirds majority to end an executive order. It has been argued that a Congressional override of an executive order is a nearly impossible event due to the supermajority vote required and the fact that such a vote leaves individual lawmakers very vulnerable to political criticism.[10]
