Paul Biya, the world’s oldest president, is seeking to extend his 42-year rule of Cameroon.

Voters in Cameroon, in Central Africa, will go to the polls Sunday. Absent from the ballot is Maurice Kamto, Biya’s main opponent, who was barred from running by the country’s electoral board.

Analysts said the vote would be the most consequential in the country’s recent history. Living conditions have plummeted as the prices of fuel and other basic goods have increased.

Biya, 92, promised that if reelected, he would fix the economy, take on youth unemployment and address poverty. “I will never resign myself to the current situation,” he said at a rally Tuesday. “Certainly, much has already been done. But I can assure you that the best is still to come.”

But his tight grip on power may be waning

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