The Supreme Court viewed the bill of attainder as essential to preserve the separation of powers. The judiciary protects its branch of government by ensuring that only a court can determine the guilt or innocence of an accused. In ''Cummings v. Missouri'' (1867), the Supreme Court held that the Congress may not "exercise[] the power and office of judge." In ''United States v. Brown'' (1965), the Court prohibited "legislative punishment, of any form or severity, of specifically designated persons or groups." | The Supreme Court viewed the bill of attainder as essential to preserve the separation of powers. The judiciary protects its branch of government by ensuring that only a court can determine the guilt or innocence of an accused. In ''Cummings v. Missouri'' (1867), the Supreme Court held that the Congress may not "exercise[] the power and office of judge." In ''United States v. Brown'' (1965), the Court prohibited "legislative punishment, of any form or severity, of specifically designated persons or groups." |