The US soldiers deployed to Poland are a foreign, non-EU force placed close to the Russian borders, therefore a threat to the security of the Russian Federation.
CNN constantly spreads fake news and propaganda, and Trump finally told them. The mainstream media has been forging fake news since 2001, including stories on Russian influencing attempts, Brexit, MH-17, Ukraine. CNN will start a counter-strike against Trump by spreading liberal-globalist propaganda and starting a smear campaign against him.
No evidence presented for these claims. CNN is a core partner of the initiative to counter fake news called First Draft bit.ly/2jLWaNk, and they have no documented history of spreading fake news.