A much-watched poll from Iowa points to a Harris landslide

AS THE ELECTION approaches its climax, dozens of opinion polls of American voters are churned out each day. None is so eagerly awaited as the final Des Moines Register/Mediacom poll of Iowa, produced by Selzer & Co, a polling firm. On “Election Twitter”—the colloquial name for a community of political-data junkies on X—this particular poll has taken on a legendary status. On the evening of November 2nd, it showed Kamala Harris leading Donald Trump in Iowa, sending Election Twitter into a frenzy. Why?