Russian trolls are back. And they’re here to meddle with 2020.

Facebook is under fire from presidential candidates, lawmakers and regulators and privacy advocates around the world. (Source: Facebook)

People linked to the Internet Research Agency, the Kremlin-backed troll group indicted by the United States for its alleged interference in the 2016 US presidential election, are laying the groundwork to do the same in 2020, new information released by Facebook on Monday suggests…