In the 1997 elections PUD won 23,977 votes (1.21%) in the presidential elections, 41,113 votes (2.16%) in the parliamentary elections, and 34,785 votes (1.77%) in the municipal elections.
In the 1997 elections the PUD's presidential candidate was Matias Funes; he polled 23,977 votes (1.21%) in the election. The party received 41,113 votes (2.16%) in the parliamentary elections, and 34,785 votes (1.77%) in the municipal elections.