also traveled to Pekin, Illinois to advocate for the re-election of Robert Michel who he stated voting for was administering a medicine for the economy's recovery. By that time, he espoused the view that Republicans would retain control of the Senate while losing some governorships and seats in the House of Representatives. On February 10, 1983, Ford and Carter made a joint appearance at the Ford Presidential Library in their capacities as co-chairmen of a conference on public policy and communications, Ford stating that the complexity of contemporary issues was widening a gap between the President and Americans thanks to media seeking out entertainment and public opinion polls answered by lobbyists that reflect the views espoused by special interest groups. On February 28, 1983, Ford appeared with former presidents Carter and Nixon at a reception celebrating the service of Hyman G. Rickover and the launch of the Rickover Foundation, Ford stating during the appearance that Rickover had made the country more secure. In January 1984, a letter signed by Ford and Carter and urging world leaders to extend their failed effort to end world hunger was released and sent to Secretary-General of the United Nations Javier Pérez de Cuéllar. On April 10, 1984, Ford endorsed Elliot Richardson in his senatorial bid in Massachusetts, calling him the most qualified of the candidates. Richardson went on to lose the election. In May 1984, 1984 Republican National Convention manager Ron Walker stated that President Reagan had spoken with Ford via a phone call and that the latter would be in attendance to the convention. In September 1986, Ford participated in a two-day seminar at the Gerald R. Ford Symposium to mark the fifth anniversary of the Gerald R. Ford Presidential Museum and raise funds. In 1987, Ford testified before the Senate Judiciary Committee in favor of District of Columbia Circuit Court judge and former Solicitor General Robert Bork after Bork was nominated by President Reagan to be an Associate Justice of the United States Supreme Court. Bork's nomination was rejected by a vote of 58-42. In 1987 Ford's Humor and the Presidency, a book of humorous political anecdotes, was published. By 1988, Ford was a member of several corporate boards including Commercial Credit, Nova Pharmaceutical, The Pullman Company, Tesoro Petroleum, and Tiger International, Inc. Ford also became an honorary director of Citigroup, a position he held till his death. In October 1990, Ford