How many United States Presidents did Queen Elizabeth II meet?
Queen Elizabeth's record-setting reign began in 1952 and Her Majesty had meetings with 13 out of the 14 U.S. Presidents during her time at the helm: Harry S. Truman, Dwight D. Eisenhower, John F. Kennedy, Richard Nixon, Gerald Ford, Jimmy Carter, Ronald Reagan, George H.W. Bush, Bill Clinton, George W. Bush, Barack Obama, Donald Trump, and Joe Biden. The odd man out is Lyndon B. Johnson, who never met the Queen.
Source: Business Insider