Hillary Clinton on Sunday posted a flowery fake letter from President John F. Kennedy to Soviet Premier Nikita Khrushchev to mock President Trump's recent, casually worded missive to Turkish President, but the Twitter mockery quickly blew back in Clinton's face, with commentators across the political spectrum suggesting the former secretary of state shouldn't relish so openly in Twitter trolling.

"Dear Premier Kruschev," the mock letter "from the archives" during the Cuban Missile Crisis began, "Don't be a d--k, ok? Get your missiles out of Cuba. ... Give you a jingle later. Hugs."

In his Oct. 9 letter to Erdoğan, first obtained by the Fox Business Network's Trish Regan, Trump adopted a similarly familiar tone.