Therese Terlaje secured the Democratic nomination in the August 2026 primary with 47.8% of the vote over Lt. Gov. Josh Tenorio, positioning her as the clear frontrunner in the November 3 general election against Republican nominee Vicente Ada, who won his party's primary with 60.6%. Guam's consistent Democratic lean in recent gubernatorial contests, combined with the absence of an incumbent due to term limits, underpins trader consensus favoring Terlaje at 70%. Recent candidate forums have highlighted shared priorities on economic development, childcare costs, and healthcare, but no major shifts in polling or endorsements have emerged since the primaries to alter the implied probabilities. The race remains subject to turnout patterns and late-cycle developments in the final weeks.