The race for second place in Acre's Senate contest remains closely balanced among several established figures, as voters select two senators on October 4 in a single round. Recent polling has shown Marcio Bittar, Mara Rocha, and Jorge Viana clustered within a few points, reflecting overlapping bases among center-right, conservative, and left-leaning voters. Gladson Camelí's candidacy, initially polling near the top, faces an indeferimento ruling under the Ficha Limpa law tied to prior convictions, creating uncertainty over appeals that traders appear to price in at modest levels. Incumbency advantages for Bittar and Petecão, combined with fragmented opposition and high undecided shares, sustain the tight implied probabilities until final ballot dynamics or court resolutions clarify the ordering.