“There’s always been a divide between liberals and conservatives in the United States over opinions,” said Richard Hasen, a professor of law and political science at University of California, Irvine.
“Where things have changed is that there’s now much more disagreement along party lines as to basic facts.”
Democrats and Republicans tend to diverge on more and more subjects including, for example, whether climate change is real and whether Russia or Ukraine interfered with the 2016 US presidential election.
“On each of these things polling shows a divide between Republicans and Democrats as to what the state of the world is,” said Hasen, author of “Election Meltdown: Dirty Tricks, Distrust and the Threat to American Democracy.”
“That’s why some of us think of this as kind of a post-truth era.”