Cláudio Castro, the governor of Rio de Janeiro, is preparing to take legal action regarding the regulations for the upcoming indirect election that will decide his successor in the interim period before he leaves office in April. This move comes as Castro officially announces his candidacy for the Senate, leaving a vacuum in the state's succession line due to the absence of a vice-governor. The election is currently scheduled for May, and Castro's appointed favorite for this position has not been officially confirmed by his allies.

The uncertainty surrounding the succession has highlighted internal disputes and political pressures within Castro's political circle. Notably, Senator Flávio Bolsonaro is pushing for Deputy Douglas Ruas, already announced as a candidate for the Rio governor's race, to also compete for the interim leadership of the state. The different factions within Castro's allies are now exploring options to resolve the impasse as tensions rise over who will take charge during the upcoming transitional period.

This situation does not only reflect the political dynamics within Rio de Janeiro but also has broader implications for the ruling party's strategy heading into the upcoming electoral battles, particularly with Castro's focus on the Senate candidacy. The outcome of this indirect election will be crucial, as it can significantly influence the political landscape of the state and the positions of power held by the Governor and his allies going forward.