SANTIAGO — Chilean pollsters have been prevented from publishing their findings since December 4, when a 14-day period of silence leading up to the election began. Earlier this week, however, political operatives circumvented the rules by leaking a recent Cadem poll to Peruvian newspaper La Republica.
The data showed far-right candidate José Antonio Kast gaining momentum and likely to overtake his left-wing opponent, Gabriel Boric. But new Cadem polls obtained by The Brazilian Report suggest Mr. Boric has reversed that trend.
Between November 26 and December 10, Mr. Kast won two points from Mr. Boric, moving within striking distance. But new polls,...