U.S. President Harry S. Truman holds up an Election Day edition of the Chicago Daily Tribune, which, based on early results, mistakenly announced "Dewey Defeats Truman" on November 4, 1948. The president told well-wishers at St. Louis' Union Station, "That is one for the books!" (AP Photo/Byron Rollins)
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]Republican presidential hopeful Sen. John McCain, R-Ariz., celebrates at his Super Tuesday primary election night party in Phoenix, Tuesday, Feb. 5, 2008. (AP Photo/Charles Dharapak)
[Click image for details ]George Wagner, 68, of Cedar Falls, Iowa, foreground, and his fellow Iowans listen to Democratic presidential candidate Sen. John Kerry, D-Mass., deliver his stump speech in an airplane hangar at the the Waterloo Municipal Airport, Tuesday, Oct. 19, 2004, in Waterloo, Iowa. Both Kerry and President Bush are fiercely fighting to win Iowa, one of a handful of battleground states that could decide the election. (AP Photo/Robert F. Bukaty)
[Click image for details ]Democratic presidential hopefuls Sen. Barack Obama, D-Ill., and Sen. Hillary Rodham Clinton, D-N.Y., react to applause from the crowd in the Kodak Theater prior to their debate in Los Angeles Thursday, Jan. 31, 2008. (AP Photo/Elise Amendola)
[Click image for details ]Republican presidential hopeful Sen. John McCain, R-Ariz., right, and his wife, Cindy McCain, left, wait behind an American flag before being introduced during a campaign rally, at Adluh Flour-Allen Brothers Milling Company, in Columbia, S.C., on Thursday, April 26, 2007. (AP Photo/Brett Flashnick)
[Click image for details ]Democratic presidential hopeful, Sen. Barack Obama, D-Ill., left, talks with Sen. Edward Kennedy, D-Mass. as fellow presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., shakes hands upon their arrival for President Bush's State of the Union address before a joint session of Congress, Monday Jan. 28, 2008, on Capitol Hill in Washington. (AP Photo/Ron Edmonds)
[Click image for details ]Delegates to the Republican National Convention in Chicago listen to a speech by former U.S. President Herbert Hoover July 8, 1952. (AP Photo/William Smith)
[Click image for details ]Sen. John F. Kennedy makes his way through a crowd of supporters and journalists as he arrives in Los Angeles, July 9, 1960 for the Democratic National Convention. (AP Photo)
[Click image for details ]President Jimmy Carter leans across the roof of his car to shake hands along the parade route through Bardstown, Ky., Tuesday afternoon, July 31, 1979. The president climbed on top of the car as the parade moved toward the high school gym, where a town meeting was held. (AP Photo/Bob Daugherty)
[Click image for details ]Democratic presidential hopeful, Sen. Hillary Rodham Clinton, D-N.Y., talk on the phone with a girlfriend of a member of the traveling press as she passed out Valentine's day chocolates aboard her campaign plane as it sat on the tarmac at the Youngstown Airport in Vienna, Ohio, Thursday, Feb. 14, 2008. (AP Photo/Carolyn Kaster)
[Click image for details ]Texas delegate Wayne Turner surveys the scene at the Republican National Convention in Philadelphia, Thursday, Aug. 3, 2000. (AP Photo/Ted Warren)
[Click image for details ]Moments before a night session of the Republican National Convention in Chicago, July 8, 1952, the seats of New York delegates were covered with "Ike" straw hats. Although not a straw vote, as one observer joked, Eisenhower was nominated at the convention and went on to defeat Adlai Stevenson for the presidency. (AP Photo)
[Click image for details ]Cowboys donned their big hats at Laramie, Wyoming, Sept. 18, 1932, as the Roosevelt Special stopped for a short time. Governor of New York Franklin D. Roosevelt,center, is on the campaign trail and the Democratic nominee for President of the United States. (AP Photo)
[Click image for details ]Republican presidential candidate Herbert Hoover delivers an address in Madison Square Garden in New York City on Oct. 22, 1928. (AP Photo)
[Click image for details ]Ronald Reagan visits the South Bronx neighborhood in New York City during his presidential campaign in New York City, Tuesday, Aug. 5, 1980. The Republican candidate, who traveled to the Bronx after addressing the National Urban League conference in New York, cited this neighborhood as a prime example of urban decay. (AP Photo/Dave Pickoff)
[Click image for details ]Broward County canvassing board member Judge Robert Rosenberg uses a magnifying glass to examine a disputed ballot Friday, Nov. 24, 2000, at the Broward County Courthouse in Fort Lauderdale, Fla. (AP Photo/Alan Diaz)
[Click image for details ]Democratic presidential hopeful Bill Clinton addresses the media as U.S. Rep. Joseph Kennedy, D-Mass., looks on at a Boston campaign stop Tuesday night, April 28, 1992. (AP Photo/Stephan Savoia)
[Click image for details ]President Bush, left, talks with independent candidate Ross Perot as Democratic candidate Bill Clinton stands aside at the end of their second presidential debate in Richmond, Va., Oct. 15, 1992. (AP Photo/Marcy Nighswander)
[Click image for details ]** FILE ** Egyptian President Anwar Sadat, left, President Carter, center, and Israeli Prime Minister Menachem Begin clasp hands on the North Lawn of the White House in Washington after signing the peace treaty between Egypt and Israel in this March 26, 1979 black-and-white file photo. Secretary of State Condoleezza Rice is looking to the past for lessons on how to make next month's planned Mideast peace conference a success. (AP Photo/ Bob Daugherty, File)
[Click image for details ]President Bill Clinton, left, and Russian President Boris Yeltsin talk as they over look the sunny splendor of the Hudson Valley behind Franklin Roosevelt's Hyde Park home in Hyde Park, N.Y. Monday Oct. 23, 1995. The leaders of the two superpower nations are meeting at the Roosevelt ancestrial home a day after they addressed the 50th anniversary session of the United Nation in New York SUnday. (AP Photo/Stephan Savoia)
[Click image for details ]Soviet leader Mikhail Gorbachev, right, and President Ronald Reagan, say farewell outside the Hofdi in Reykjavik, Iceland in October 1986 after four sessions of talks. (AP Photo)
[Click image for details ]The Big Four of the Allies chat while gathering in Versailles for the Treaty of Versailles, which officially ended World War I, in this 1919 photo. They are, left to right, David Lloyd George, of Great Britain, Vittorio Orlando, of Italy, Georges Clemenceau, of France, and Woodrow Wilson, United States President. (AP Photo)
[Click image for details ]President George Bush and Pakistani Prime Minister Benazir Bhutto stand together during a welcoming ceremony on the grounds of the White House, in this June 6, 1989, file photo. Pakistani opposition leader Benazir Bhutto, 54, was assassinated Thursday, Dec. 27, 2007, in Rawalpindi, Pakistan in a suicide attack. At least 20 others were also killed in the attack on a campaign rally where Bhutto had just spoken. (AP Photo/Bob Daugherty, File)
[Click image for details ]U.S. President Bill Clinton, wearing in traditional Senegalese clothing, and his wife, Hillary Rodham Clinton, listen to ''griot'' or village storytellers of the Dal Diam village about 90 kilometers (56 miles) east of Dakar, during a tour of the area of sustained recovery from drought Wednesday April 1, 1998. Senegal is Clinton's last port of call on his six-nation tour of Africa, and he will return to the US on Thursday. (AP Photo/Greg Gibson)
[Click image for details ]Soviet Union Premier Josef Stalin, U.S. President Franklin D. Roosevelt, center, and British Prime Minister Winston Churchill sit at the Teheran Conference in the capital of Persia, Iran, on Nov. 28, 1943. The three leaders, meeting for the first time, are to discuss Allied plans for the war against Germany and for postwar cooperation in the United Nations. (AP Photo)
[Click image for details ]Children in a Hong Kong refugee resettlement area watch as former Vice President Richard Nixon shows them his badminton service. Nixon visited Hong Kong, April 4, 1964, during his tour of countries in the Far East. (AP Photo)
[Click image for details ]The media surround Russian President Vladimir Putin and President Bush as they shake hands in the Oval Office Tuesday, Nov. 13, 2001, at the White House in Washington. (AP Photo/Doug Mills)
[Click image for details ]With their heads bowed, President John F. Kennedy, left, walks along a path at Camp David near Thurmont, Md., with former President Dwight D. Eisenhower, April 22, 1961, as the two met to discuss the Bay of Pigs invasion. (AP Photo/Paul Vathis)
[Click image for details ]President Clinton walks to the podium to deliver a short statement on the impeachment inquiry in the Rose Garden of the White House in Washington Friday, Dec. 11, 1998. Nearing a showdown over the fate of his presidency, President Clinton apologized to the country today for his conduct in the Monica Lewinsky affair and said he would accept a congressional censure or rebuke. (AP Photo/J. Scott Applewhite)
[Click image for details ]President Ronald Reagan steps aside as Attorney General Edwin Meese, right, prepares to answer reporters' questions at the White House on November 25, 1986. Meese said the White House had learned that up to $30 million received from the secret sale of arms to Iran had been transferred to U.S.-backed Contras fighting the Nicaraguan government. (AP Photo/Bob Daugherty)
[Click image for details ]President Lyndon Johnson, in shirt sleeves and open collar, works on his speech in the White House Cabinet Room March 30, 1968. The following day the president announced to the nation that in order to devote himself to his duties, he would not seek or accept the nomination for re-election. (AP Photo/Bob Daugherty)
[Click image for details ]President Clinton, his daughter Chelsea, center, and wife Hillary walk with Buddy Tuesday, Aug. 18, 1998, from the White House toward a helicopter as they depart for vacation enroute to Martha's Vineyard, Mass. (AP Photo/Roberto Borea)
[Click image for details ]On the day of his resignation, Aug. 9, 1974, Richard M. Nixon waves goodbye from the steps of his helicopter as he leaves the White House following a farewell address to his staff. The Watergate scandal forced Nixon to become the first U.S. president to resign from office. (AP Photo/Chick Harrity)
[Click image for details ]Richard Nixon performs the last acts of his devastated presidency in the White House East Room, August 9, 1974, as he bids farewell to his Cabinet, aides, and staff. Nixon said only a man in the deepest valley can know how magnificent it is to be on the highest mountain. (AP Photo)
[Click image for details ]This picture shows President Richard Nixon's letter of resignation to Secretary of State Henry Kissinger, August 9, 1974. (AP Photo/White House )
[Click image for details ]** FOR USE AS DESIRED WITH SEPT. 11 ANNIVERSARY STORIES--FILE **President Bush's Chief of Staff Andy Card whispers into the ear of the President to give him word of the plane crashes into the World Trade Center, during a visit to the Emma E. Booker Elementary School in Sarasota, Fla., in this Sept. 11, 2001, file photo. This year will mark the fifth anniversary of the attacks. (AP Photo/Doug Mills/FILE)
[Click image for details ]** FOR USE AS DESIRED WITH SEPT. 11 ANNIVERSARY STORIES--FILE **As rescue efforts continue in the rubble of the World Trade Center, President Bush puts his arms around firefighter Bob Beckwith while standing in front of the World Trade Center debris during a tour of the devastation, in this Sept. 14, 2001, file photo. Bush is standing on a burned fire truck. Mayor Rudolph Giuliani said 4,763 people have been reported missing in the devastation of the World Trade Center. This year will mark the fifth anniversary of the attacks. (AP Photo/Doug Mills/FILE)
[Click image for details ]President Bush declares the end of major combat in Iraq as he speaks aboard the aircraft carrier USS Abraham Lincoln off the California coast Thursday, May 1, 2003. The carrier will arrive in San Diego May 2, 2003, following a record 10-month deployment including "Operation Iraq Freedom." (AP Photo/J. Scott Applewhite)
[Click image for details ]President George Bush tosses presidential tie clips to U.S. Marines at a desert encampment in eastern Saudi Arabia Nov. 23, 1990 during a Thanksgiving Day visit. (AP Photo/J. Scott Applewhite)
[Click image for details ]President George W. Bush shakes hands with U.S. soldiers during a visit at the U.S. military base Camp Bondsteel, 25 miles (40 kilometers) southeast of Kosovo's capital Pristina, Tuesday, July 24, 2001. (AP Photo/J Scott Applewhite)
[Click image for details ]President Nixon is surrounded by combat infantrymen of the U.S. First Infantry Division at their headquarters at Di An, 12 miles north of Saigon, July 30, 1969. (AP Photo/stf)
[Click image for details ]Theodore Roosevelt, center, poses with members of the Rough Riders in this 1898 photo. Roosevelt leading his troops in the victorious charge up Cuba's San Juan Hill is an image preserved by legend. His great-grandson, Tweed Roosevelt, is backing an effort by Teddy Roosevelt's admirers to win for the former president the nation's highest military honor, The Medal of Honor, for which he was nominated for in 1898 but did not receive. (AP Photo)
[Click image for details ]Stanley Sherman of New York helps carry a flag-draped casket past Madison Square Garden during the anti-Bush march organized by United for Peace and Justice in New York Sunday, Aug. 29, 2004, on the eve of the Republican National Convention. The group carried what was described as 1,000 coffins representing U.S. dead in Iraq. (AP Photo/Paul Sancya)
[Click image for details ]General Dwight Eisenhower gives the order of the day, "Full Victory - Nothing Else," to paratroopers somewhere in England just before they board their planes to participate in the first assault in the invasion of the continent of Europe, June 6, 1944. (AP Photo/U.S. Army Signal Corps Photo)
[Click image for details ]President Bush observes Memorial Day, Monday, May 27, 2002, with a visit to the Normandy American Cemetery in Colleville-sur-Mer, France, home to the graves of 9,387 men and women killed in the World War II liberation of Europe. It was at the nearby beaches of Normandy in northwestern France where Allied forces broke through Hitler's fortifications 58 years ago to begin the end of World War II. (AP Photos/J. Scott Applewhite)
[Click image for details ]A crowd of American soldiers swarm around U.S. President Johnson on Oct. 26, 1966 shortly after his arrival at Cam Rahn Bay in South Vietnam visiting troops during the war. (AP Photo)
[Click image for details ]A float carrying a huge bust of President Franklin Roosevelt rolls up Fifth Avenue during a gigantic war parade in New York, June 13, 1942. (AP Photo)
[Click image for details ]U.S. President Abraham Lincoln, wearing top hat, is shown with Union Army Gen. George B. McClellan, facing Lincoln, and McClellan's staff at Antietam, Maryland, 1862 during the American Civil War. (AP Photo/Alexander Gardner)
[Click image for details ]President Bush leavess a news conference in the East Room of the White House Thursday, Oct. 11, 2001 in Washington. (AP Photo/Doug Mills)
[Click image for details ]Former first lady Nancy Reagan kisses the casket of her husband former President Ronald Reagan prior to the removal of his remains from the Capitol Rotunda in Washington, Friday, June 11, 2004. (AP Photo/Elise Amendola)
[Click image for details ]U.S. President Richard M. Nixon flashes an "okay" sign as he and first lady Pat Nixon leave the Rose Garden ceremony that saw their daughter Tricia marry Edward Finch Cox in Washington, D.C., Saturday, June 12, 1971. In the background are the parents of the groom, Mr. and Mrs. Howard E. Cox. (AP Photo/Bob Daugherty)
[Click image for details ]President George Bush, left, walks with former Presidents Ronald Reagan, Jimmy Carter, Gerald Ford, and Richard Nixon in the courtyard of the Ronald Reagan Presidential Library Monday, Nov. 4, 1991 in Simi Valley, Calif. (AP Photo/Marcy Nighswander)
[Click image for details ]U.S. President Lyndon B. Johnson, munching on a cookie, and George Meany, president of AFL-CIO, laugh at a speaker's remark during the first annual Jewish Labor Committee Human Rights Awards dinner at the Sheraton in New York City on Nov. 9, 1967. Pres. Johnson made a surprise visit to attend the dinner, where Meany is honored with the Human Rights Award. (AP Photo/Marty Lederhandler)
[Click image for details ]President Bush pauses as he speaks about homeland security and the budget at the base of Mount Rushmore National Memorial, in background, Thursday, Aug. 15, 2002, in S.D. (AP Photo/Ken Lambert)
[Click image for details ]As the U.S. prepared to honor George Washingon on Feb. 22, 1940, the 208th anniversary of his birth, Guton Borglum's huge Black Hills granite sculpture neared completion at the Mount Rushmore National Memorial near Rapid City, S.D. Note comparitive sizes of men at work on head of Washington, which together with likenesses of Lincoln, Jefferson, and Theodore Roosevelt, was scheduled for completion in June 1940. (AP Photo)
[Click image for details ]U.S. President Ronald Reagan, left, cuts-in on a dance between Frank Sinatra and his wife, first lady Nancy Reagan, at a party in the East Room of the White House in Washinton, D.C., Feb. 6, 1981. (AP Photo/White House, Mike Evans)
[Click image for details ]Mrs. John F. Kennedy has a chuck under the chin for her husband moments after he became president, January 20, 1961. This exclusive picture by AP photographer Henry Burroughs, was taken in the rotunda of the capitol just after President Kennedy left the inaugural stand. (AP Photo/Henry Burroughs)
[Click image for details ]Former President Bush makes rabbit ears behind his wife, Barbara, as former presidents and first ladies wait for the official portrait during a gala Wednesday night, April 16, 1997, in Grand Rapids, Mich., in honor of the rededication of the Ford Museum. Front row from left are Lady Bird Johnson, Barbara Bush, Betty Ford and Rosalynn Carter. Back row from left are former President's Bush, Ford and Carter. (AP Photo/Carlos Osorio)
[Click image for details ]Democratic presidential candidate Bill Clinton, right, focuses a network television camera on running mate Sen. Al Gore Tuesday, Aug. 4, 1992 before they both departed Washington for Little Rock, Ark. The Democratic ticket was to begin a three-day campaign bus tour through the Midwest starting Wednesday. (AP Photo/Wilfredo Lee)
[Click image for details ]President Richard M. Nixon checks his watch while shaking hands as he heads to the Royal Palace in Brussels for a luncheon with Belgium's King Baudouin, June 26, 1974. (AP Photo/Charles Tasnadi)
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