During the first Bush administration, Rather got no interview with Bush Sr. They had a reason as explained below:
"During the Bush presidency, we offered many interviews to CBS correspondents Bob Schieffer, Charles Kuralt, Randall Pinkston, Harry Smith, and others. All we wanted was someone who would be civil. But CBS management always said, 'No, only Dan Rather interviews the president.'"
--Marlin Fitzwater, press secretary
But that interview never happened.