For much of the 20th century, Mexico was ruled by the Institutional Revolutionary Party, or PRI.
In 2000, the PRI's long reign came to an end. But on Sunday, when Mexicans elect a new president, they are expected to pick the PRI candidate, Enrique Pena Nieto.
That has some in Mexico, as well as in the international community worried that Mexico may return to the authoritarian and corrupt policies of the past.
But a man who led the charge against the PRI isn't so worried. Jorge Castaneda was Mexico's Foreign Minister in the early 2000's. He says the country is a much different now, than it was 12 years ago. He tells Madeleine the institutions in the country are stronger, the international community is much more involved, and the people of Mexico's expectations have changed in ways that make a return to old-style rule very improbable.