In the past, Trump's worst tweets included the ludicrous, like his claim that climate change was a Chinese hoax, as well as the insulting and unsubtle. "While @ BetteMidler is an extremely unattractive woman," Trump tweeted in 2012, "I refuse to say that because I always insist on being politically correct." He remained an impulsive tweeter well into his presidential campaign. On Sept. 30, he unleashed a series of tweets in the dead of morning, exhorting supporters to "check out sex tape" of former Miss Universe Alicia Machado.