By Rodrigo Campos, Karin Strohecker and Marc Jones

NEW YORK/LONDON (Reuters) -Investors are bracing for a renewed round of Argentine currency and bond market swings, as this Sunday’s midterm elections mark a defining moment for President Javier Milei’s economic reform efforts.

Milei is not on the ballot himself but his La Libertad Avanza party is, making the vote a key test for his right-wing stabilization strategy and far-reaching austerity plan, which endeared him to U.S. President Donald Trump and helped to secure a $20 billion U.S. swap line.

Even so, it’s been far from a smooth ride in the markets in recent weeks, and with most polls showing a tight race, investors see the potential for gyrations either way once the election results are in.

The peso stumbled to a record low agains

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