Prince Philip's apology letter to Richard Nixon for "lame" dinner toast revealed

An apology letter Prince Philip wrote to former U.S. President Richard Nixon in the 1960s has resurfaced this week, just ahead of the Duke of Edinburgh's funeral Saturday.

Prince Philip wrote the letter in 1969, after making a faux pas at a White House dinner with the president. He told Mr. Nixon that after that evening, he had woken up "in a cold sweat," realizing he had forgotten to make a toast to Mr. Nixon's health. He said in comparison to others' toasts, his was "very lame." "Dear Mr. President," Prince Philip wrote in the letter, which was recently unearthed by the Richard Nixon Presidential Library. "I can't begin to tell you how much I appreciated your very great kindness and hospitality at the White House. I was quite overwhelmed by the guests but delighted to meet such a distinguished company."