NBC News Signal presents factory of lies: Democracy under attack

Americans elected Donald Trump president after a bruising campaign mired by disinformation online and suspicious hacks. We now know the Russian government interfered in the elections by manipulating social media in a bold attempt to influence the vote. The Russian tactics may have been new, but their propaganda playbook is age-old. The NBC News Business, Tech and Media team recounts what happened in 2016 and sheds light on what it means for our democracy going forward.