Wary Conservatives, Eager Liberals Undermine Polls

New York Times: “Data for Progress researchers have gotten used to being told to take a hike — and worse — by Trump supporters they try to poll, and the report detailed their difficulties in reaching that group. But perhaps most significantly, it also found that they were having trouble reaching a representative sample of Democrats, as well as Republicans — partly because liberals with strong political views were almost too willing to be polled.”