@CNN: 2017 was a polarizing year dominated by hashtags and Trump, writes Tim Lister for @CNNOpinion https://t.co/wJ38DmuGYc https://t.co/1hmHdAmTnt

@CNN: 2017 was a polarizing year dominated by hashtags and Trump, writes Tim Lister for @CNNOpinion https://t.co/wJ38DmuGYc https://t.co/1hmHdAmTnt