Politico: “The polling industry whiffed every year Trump has been on the ballot. In 2016, Trump upset Hillary Clinton to win the presidency. And after spending four years trying to fix what went wrong, the polls were even worse in 2020. Trump ran far more competitively with now-President Joe Biden than the preelection surveys suggested.”
“Pollsters are breathing a sigh of relief after largely nailing last year’s midterm elections. But presidential years have been a different story in the Trump era.”
“And now, with Trump expanding his lead over his GOP primary rivals, pollsters are fretting about a bloc of the electorate that has made his support nearly impossible to measure accurately.”