According to the Smithsonian Magazine, Elvis had penned a letter to President Nixon on a flight headed to Washington D.C. 'Sir, I can and will be of any service that I can to help the country out,' he had written.

Source: https://www.dailymail.co.uk/galleries/article-11834959/Priscilla-Presley-makes-red-carpet-debut-Lisa-Maries-passing.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

For President Nixon and Kissinger, justice and morality count for nothing in foreign policy and international power play.

Source: https://realnewsmagazine.net/exit-henry-kissinger-americas-symbol-of-glamour-horrific-diplomacy/?utm_source=rss&utm_medium=rss&utm_campaign=exit-henry-kissinger-americas-symbol-of-glamour-horrific-diplomacy

He had, however, been reminded by President Nixon, in a phone call the following day, of their mutual position on international power relations : ” This idealism (justice) in policy is good.

Source: https://thenationonlineng.net/exit-henry-kissinger-americas-symbol-of-glamour-diplomacy/

While in office, he pardoned President Nixon, a controversial decision.

Source: https://rapidcityjournal.com/news/nation-world/abraham-lincoln-1858-ambrotype-illinois-museum/article_60400ab1-2429-5f7b-85f0-34f737a067a3.html