Marquette

The Marquette University Law School Poll (MULSP), launched in 2012 and based in Milwaukee, Wisconsin, is a well-regarded non-partisan polling programme that covers both Wisconsin state politics and national electoral topics. Its director, Charles Franklin, is a quantitative political scientist whose methodology notes are widely read by political journalists. For the 2026 midterms, Marquette has published generic-ballot readings that cluster in the D+3 to D+5 range alongside institutional pollsters such as NBC and Reuters/Ipsos, putting it in the centre of the current polling distribution .

The poll is fielded via live telephone interviews and, in some cycles, online panels. It publishes full crosstabs and methodology documentation. It is best known for its Wisconsin Senate and gubernatorial tracking, having produced a consistent series through the competitive 2022 and 2024 cycles. Its national generic-ballot surveys are a more recent addition to the programme.

In the context of the 2026 House race, Marquette's D+3 to D+5 readings are significant because analysts such as CNN's Harry Enten assess that Democrats need roughly D+3 to D+4 to overcome the Republican redistricting advantage. A reading at the lower bound of Marquette's range would place Democrats right at that threshold, making it a key data point for projections of House control.