Oct. 20 (UPI) -- Bolivia is poised to elect Rodrigo Paz, a right-leaning centrist senator, as president on Sunday, besting former conservative president Jorge Quiroga in an election runoff.

According to preliminary results from the Supreme Electoral Tribunal, Paz, 58, of the Christian Democratic Party, won with 54.6% of the more than 6.5 million people in the country who cast ballots on Sunday.

Paz is the son of former President Jaime Paz Zamora, who served from 1989 to 1993.

Paz was elected after coming out on top of the mid-August presidential election -- a surprise rise to the top of a heap of candidates as National Unit Front party's Samuel Doria Medina was expected to be the winner at the time.

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