China is pushing divisive political messages online using fake U.S. voters NPRBeijing-Backed Trolls Target U.S. Voters as Election Nears The Wall Street JournalUS voters targeted by Chinese influence online, researchers say ReutersChina-linked ‘Spamouflage’ network of fake social media users mimics Americans to sway U.S. political debate FortuneChina-Linked ‘Spamouflage’ Network Mimics Americans Online to Sway US Political Debate U.S. News & World Report