Law professor breaks down Supreme Court's decision to block Missouri's new congressional map
The Supreme Court has blocked Missouri's use of a new congressional map that would have favored Republicans ahead of the midterms. CBS News legal contributor Jessica Levinson explains what this means.

<p>The Supreme Court has blocked Missouri's use of a new congressional map that would have favored Republicans ahead of the midterms. CBS News legal contributor Jessica Levinson explains what this means.</p>