From Carter's kiss to Trump's step ahead: Famous presidential gaffes toward British royals

Maybe it was nerves from being in the presence of royalty or perhaps it was a simple mistake, but there have been quite a few gaffes by U.S. presidents and first ladies toward members of the British royal family over the years. President Jimmy Carter attended a summit dinner at Buckingham Palace in 1977. It was rumored that Carter kissed the Queen Mother on the lips during a greeting.