We won’t need Russia in 2020. We will hijack our democracy ourselves. And Facebook is sure to be a major factor in that hijacking – once again. The platform is ripe for further exploitation by domestic forces bent on distorting the political conversation and stirring up irrational passions in a way sure to benefit Donald Trump’s re-election efforts. The continued proliferation of white supremacists on Facebook, and its refusal to block a heavily doctored video of House speaker Nancy Pelosi, are just the latest demonstrations of Facebook’s cowardice. Despite scrutiny in the three years since Facebook’s troublesome role in Trump’s 2016 election – embedding Facebook staff in the campaign itself, hosting millions of dollars of targeted ad spending, and distributing false and divisive messages sponsored by Russia and meant to divide the United States and promote Trump – Facebook remains vulnerable to the sorts of divisive propaganda that motivate nationalist and authoritarian movements. This was evident in recent elections in Brazil, Italy, and India, where nationalist forces assumed power with the aid of Facebook-centric election campaigns filled with vitriol and conspiracy theories. Such propaganda starts with a concerted effort using platforms other than Facebook, such as Reddit, YouTube, state-sponsored systems like Russia’s RT, or private media like Fox News in the US. The messages then migrate to Facebook, with its 220 million American users and 2.4 billion users worldwide. Once there, Facebook’s algorithms take over, amplifying extremist content and connecting susceptible people who might never otherwise find each other. It’s a complex ecosystem that can’t be examined properly by isolating its elements. What happens on Reddit and Fox changes Facebook, and what happens on Facebook changes Reddit and Fox.