<a class="mw-redirect" href="https://en.wikipedia.org/wiki/U.S._Supreme_Court" id="mwtA" rel="mw:WikiLink" title="U.S. Supreme Court">U.S. Supreme Court</a> delivers its opinion in <i id="mwtQ"><a href="https://en.wikipedia.org/wiki/Erie_Railroad_Co._v._Tompkins" id="mwtg" rel="mw:WikiLink" title="Erie Railroad Co. v. Tompkins">Erie Railroad Co. v. Tompkins</a></i> and overturns a century of federal common law.