Voters cast their ballots at the Cathedral of St. John the Divine in New York on Tuesday, Nov. 3, 2026.

(WASHINGTON, D.C.) The crucial test for preelection polls is whether they broadly indicate how voters are likely to decide. By that fundamental measure, the 2026 midterm polls largely succeeded in anticipating outcomes on Election Day.

If somewhat tentatively, the polls overall had been signaling important gains for Democrats. And that is what voting produced.

Originally published on theconversation.com, part of the BLOX Digital Content Exchange.