"Powell v. McCormick" is a landmark Supreme Court case that addressed the qualifications for membership in the United States Congress. The case arose when Adam Clayton Powell, Jr., an African American Congressman, was reelected but faced allegations of misusing congressional funds. The House of Representatives attempted to block his re-entry based on these allegations. In a significant ruling, the Supreme Court determined that Congress could not impose additional qualifications beyond those explicitly stated in the Constitution, which Powell satisfied. The Court also emphasized that expulsion from Congress requires a two-thirds vote, safeguarding against arbitrary removal of members. This decision reinforced the constitutional framework surrounding congressional membership and highlighted the importance of due process within legislative bodies. It ultimately affirmed the principle that elected officials cannot be denied their seats without proper justification and adherence to established constitutional standards. The case is significant not only for its legal implications but also for its role in the ongoing discourse around race and representation in American politics.