Tuesday morning quarterbacking the Iowa Poll

Monday night was a thriller, no doubt about it. Of course, the outcome of the Republican caucuses was not identical to the final Des Moines Register/Bloomberg Politics Iowa Poll published Saturday night. We had the top four candidates identified, all right. But we had Donald Trump with the win over […] Read more »

Bernie Sanders’s Big Turnout Problem: He’s Reliant on Infrequent Voters

It’s common to talk about the turnout challenge facing Donald Trump, who clearly fares well among those who don’t vote regularly. But the candidate with the biggest turnout challenge in this cycle is probably Bernie Sanders. Mr. Sanders appears to be extraordinarily dependent on turnout from infrequent voters, even more […] Read more »

Why Polls Have Been Wrong Recently

The polling industry has been hit hard by high-profile misfires in recent years. … But exactly why the polls err often remains a mystery. Potential sources for error abound: The initial samples could be biased, the likely-voter models may not reflect the actual electorate, or voters could make last-minute decisions that […] Read more »