Gracinha Caiado (União Brasil) holds a clear lead in recent polling for first place in Goiás’s two-seat Senate race, with a September 17–21 Real Time Big Data survey showing her at 23% versus Gustavo Gayer (PL) at 20% in the consolidated first-and-second-vote metric. Her position stems from strong name recognition as the state’s former first lady and alignment with the political network built by her husband, former governor Ronaldo Caiado. Gayer, a sitting federal deputy, trails but remains the main challenger through his PL base and appeals to conservative voters. Other registered candidates, including Vanderlan Cardoso, Zacharias Calil, and Gustavo Mendanha, register single-digit support and trail further back. The election occurs October 4 in a single round, with traders’ pricing reflecting Caiado’s consistent edge in the most recent surveys.