Polls have closed in Argentine parliamentary elections that pitted the wife of the current president against the wife of a former president.

First lady Cristina Kirchner and former first lady Hilde Duhalde  battled Sunday for a senate seat in heavily populated Buenos Aires province.

Analysts say the election can be seen as a referendum on the power of Argentine President Nestor Kirchner, who hopes to bolster his party's majority.

Half the seats in the lower Chamber of Deputies and a third of Senate seats were at stake in the elections.

Hilde Duhalde is the wife of former president Eduardo Duhalde, who preceded Mr. Kirchner.

Some information for this report provided by AP, AFP.