

In this 1931 file photo, Ronald Reagan poses in his lifeguard uniform in the summer of his sophomore year at Eureka College in Eureka, Ill. Sunday, Feb. 6, 2011 marks the centennial anniversary of Reagan's birth. AP/File
This undated file photo shows Ronald Reagan. Sunday, Feb. 6, 2011, marks the centennial anniversary of Reagan's birth. AP/File
California's Republican governor-elect Ronald Reagan waves to reporters from the podium after a landslide victory over the incumbent Democrat in Los Angeles, Ca., on Nov. 9, 1966. AP/File
In this Jan. 2, 1967 file photo, Republican Ronald Reagan is sworn in as governor of California as he takes the oath of office from California State Justice Marshall F. McCombs in Sacramento, Calif. Sunday, Feb. 6, 2011, marks the centennial anniversary of Reagan's birth. AP/File
President Ford and former Republican presidential candidate Ronald Reagan show Republican solidarity on the closing night of the Republican National Convention. August 19, 1976. (left to right: Sen. Robert Dole, Republican vice presidential candidate; Nancy Reagan, Reagan, Ford, Vice President Nelson Rockefeller, daughter of Ford (son Jack Ford visible behind her), Betty Ford. Gerald R. Ford Library/File
Former president Gerald Ford (l.) lends his support to fellow Republican and presidential candidate Ronald Reagan and running mate George Bush on their final day of campaining in Peoria, Ill., in this Nov. 3, 1980 file photo. AP/File
In this Aug. 19, 1980 file photo Republican presidential candidate Ronald Reagan holds up the hand of US Senate candidate Arlen Specter at fund-raising party for Specter in Philadelphia. Zeboski/AP/File
US President-elect Ronald Reagan and Vice President-elect George Bush share a laugh during their first news conference in which they announced their transitional team in Los Angeles, Ca., Nov. 6, 1980. Reagan devoted his presidency to winning the Cold War, trying to scale back government and making people believe it was "morning again in America." AP/File
This Jan. 20, 1981 file photo, shows President Ronald Reagan as he gives a thumbs up to the crowd while his wife, first lady Nancy Reagan, waves from a limousine during the inaugural parade in Washington following Reagan's swearing in as the 40th president of the United States. Sunday, Feb. 6, 2011, marks the centennial anniversary of Reagan's birth. AP/File
In a Feb. 14, 1984 file photo, President Ronald Reagan, King Hussein of Jordan (l.), and President Hosni Mubarak of Egypt walk along the colonnades at the White House. Barry Thumma/AP/File
File photo of former US President Ronald Reagan and his wife Nancy waving from the back of their limousine in this February 6, 1984. The White House/Reuters/File
File photo showing former President Ronald Reagan and first lady Nancy Reagan posing with entertainer Michael Jackson in May of 1984. Reuters/File
In a June 7, 1984 file photo, President Ronald Reagan has a word in the ear of Britain's Prime Minister Margaret Thatcher, at a reception given by the British Government at London's St. James Palace for leaders attending the Economic Conference. Disclosed records show Britain's iconic prime minister Margaret Thatcher snubbed aides who questioned Ronald Reagan's credentials as US president. The files also show she made a previously unknown effort to intervene in the US Embassy hostage-taking. AP/File
A November 1985 file photo showing former President Ronald Reagan talking with the late House Speaker Thomas 'Tip' O'Neill in the Oval Office of the White House. Scott Stewart/AP/File
Former US President Ronald Reagan reviews an honor guard in Quebec City, Quebec in this March 1985 file photo during an official visit to Canada.
File photo of US President Ronald Reagan and Soviet President Mikhail Gorbachev signing the Intermediate-Range Nuclear Forces (INF) treaty at the White House, on December 8 1987. Dennis Paquin/Reuters/File
Departing US President Ronald Reagan is seen shortly after he delivered his farewell address to the nation at the Oval Office in the White House, Washington, on January 12, 1989.