GOP senator: Impeachment should encourage Trump to be more 'careful' next time NBCNews.comDershowitz changes his mind on impeachment requirements, argues crime must be committed Fox NewsSchiff calls Trump 'vindictive' and says Trump's tweet was intended to intimidate CNNSenate's impeachment trial: Wake me when it's over | TheHill The HillThe truth about Trump’s lies The Boston GlobeView full coverage on Google News