Elisa Shearer at Pew:
Eight-in-ten U.S. adults say that when it comes to important issues facing the country, Republican and Democratic voters not only disagree on plans and policies, but also cannot agree on basic facts.
Another 18% say voters in opposing parties can agree on basic facts, even if they disagree about policies, according to a Pew Research Center survey conducted in March.
Views are essentially unchanged since we first asked a similar question in 2016. That year, 81% said that most Donald Trump and Hillary Clinton supporters could not agree on basic facts.