The governor joined other party members in the queue to cast his vote.
The 2026 budget comprised N783 billion for capital expenditure.
Mr Obasa had alleged that he was unlawfully removed from his position on January 13 by 36 lawmakers while he was abroad.
The governor submitted NN682,244,449,513,87 to the state assembly for consideration and approval.
The speaker and his deputy were elected unopposed after their nominations by Bello Idris and Aminu Al-Mustapha.
He, however, challenged his impeachment, which he described as illegal, saying that it contravened the assembly rules.
The seven senior lawyers described Mr Aribisogan’s removal as “an overt and brazen exhibition of illegality and use of brute force under democracy”.
Mr Sanwo-Olu described the lawmaker’s death as shocking and a great loss to the state.
