Analysis: Argentina's Fernandez faces political acid test in midterm vote

Argentina's President Alberto Fernandez heads the closing campaign rally before midterm elections, in Merlo, Buenos Aires, Argentina, November 11, 2021. REUTERS/Matias Baglietto

BUENOS AIRES (Reuters) - Argentina's center-left President Alberto Fernandez is set for a political test on Sunday that could split the ruling Peronist party, trigger a cabinet exodus and throw into disarray the left's campaign two years from a 2023 presidential vote.

The South American country is going to the polls for a midterm legislative ballot, with a dry run primary and polling numbers suggesting voters will punish the government, potentially erasing its decades-old majority in the Senate.