Colegrove v. Green, 328 U.S. 549 (1946), was a United States Supreme Court case. Writing for a 4–3 plurality, Justice Felix Frankfurter held that the federal judiciary had no power to interfere with malapportioned Congressional districts. The Court held that the Elections Clause in Article I, section IV of the U.S. Constitution left to the legislature of each state the authority to establish the time, place, and manner of holding elections for Congressional Representatives, and that only Congress (and thus not the federal judiciary) could determine whether individual state legislatures had fulfilled their responsibility to secure fair representation for citizens.