He sat in the Argentine Senate representing San Juan Province (Argentina) for the Production and Labour party from 2005 to 2023.

In 1976, Basualdo began a motor racing career, competing in the Cuyo district and gaining five championships.

[1] Basualdo is a dissident Peronist opposed to the mainstream of his party in the province but is closer to the national leadership of the PJ.

In 2003, he stood for the governorship of San Juan, losing to the Justicialist José Luis Gioja by 41.5% to 30.8%, with incumbent governor Wbaldino Acosta third with 19%.

In the Senate he sits in his own block, rather than the ruling Front for Victory, although he supported the election of President Cristina Fernández de Kirchner.