House Speaker Thomas P. "Tip" O'Neill Jr. (right) leans forward to ask President Reagan a question during the Social Security bill-signing ceremony on the South Lawn of the White House on April 20, 1983, as various political figures look on. (Associated Press)

House Speaker Thomas P. "Tip" O'Neill Jr. (right) leans forward to ask President Reagan a question during the Social Security bill-signing ceremony on the South Lawn of the White House on April 20, 1983, as various political figures look on. (Associated Press)