What's at stake in the Argentine elections? The presidency, of course.
But current President Cristina Fernandez de Kirchner has looked sure to win for weeks now.
Which means that most of the suspense centers on the congressional and gubernatorial elections.
Twenty-four Senate seats and 130 slots in the Chamber of Deputies are in play.
Kirchner's Peronist party lost its majorites in the two houses in the disastrous 2009 midterm elections.
In the lower house, her party is hoping to win the 129 seats needed for a quorum.
In the last days of the campaign, many of the presidential candidates warned voters against giving the ruling party too much power in the incoming congress.
No one has a clear majority in the Senate at the moment, but the ruling party has the largest block, and Kirchner has been able to push measures through the body.
There are also nine governorships up for grabs.