Amid a rising tide of angry criticism from both the political right and left, The United States Senate has set a date for a hearing on the proposed merger between AT&T and Time Warner. AT&T CEO Randall Stephenson Time Warner CEO Jeff Bewkes will appear before the Senate Judiciary Committee’s antitrust subcommittee December 7 to testify about the effects the merger may have, and to address criticisms. “The hearing will examine the impact of the proposed transaction on…