If Santiago Peña, 44, a former finance minister, wins, it means that the National Republican Association (ANR) will add another five years to 70 years of dominance of Paraguayan politics. If the third is the loser, and Efraín Alegre manages to reach the López Palace at the head of the Concertación, Paraguay will have joined the wave of governments of progressive bias in Latin America.

The election is also watched with very high interest by the United States, which intervened decisively in Paraguay's politics in the last year.