https://www.cnet.com/news/donald-trump-is-here-to-stay-on-twitter-says-ceo-jack-dorsey/ > Love him or hate him, Donald Trump has redefined Twitter. > The US president has become a force to be reckoned with on the social media platform, dictating policy via tweets, firing off midnight missives, blocking his dissenters and redefining the diplomatic agenda (hashtag Little Rocket Man).