“Donald Trump won the popular vote in the 2016 election (20 percent).” • “Iraqis used weapons of mass destruction against U.S. troops during the Iraq invasion (20 percent).” • “The 2010 Affordable Care Act includes ‘death panels’ (40 percent).” • “Childhood vaccines cause autism (15 percent).” • “Global warming is a hoax (35 percent).” • “Russia didn’t meddle in the 2016 presidential election (37 percent).”