SAN JOSE, Costa Rica (AP) -- Costa Rican opposition candidate Luis Solis should easily win Sunday's presidential runoff, after all, his only rival dropped out of the election campaign because he had fallen so far behind.
But the center-leftist faces another challenge: voter abstention. Experts warn that a low turnout in an election seen as a foregone conclusion could undermine the legitimacy of his government.
Solis topped the first round of the presidential vote in February with only about 30 percent of the vote and a margin of less than 1 percentage point over Johnny Araya of the governing National Liberation Party. But just over a month later, polls showed Solis had built a lead of two or three to one, and Araya stopped campaigning, saying it would be a waste of money.
Araya's name, however, still appears on the ballot, and on Sunday he said he "held out hope" of being elected even though he had suspended campaigning in early March and talked about wanting to form a unity government with Solis' party.
Solis, who turns 56 later this month, has vowed a more activist government that focuses on building up small and medium-sized local businesses while strengthening social and environmental programs in a country long considered the most stable in Central America.
While his Citizen Action Party opposed the Central American Free Trade Agreement, Solis said he won't try to pull out of the deal, but will manage it better.
Solis will have to negotiate to get his policies through Congress. His party holds just 13 of the 57 seats in the National Assembly. And analysts say Sunday's vote total could affect his influence as well.
"If he gets less votes that what he got in the first round, he won't have political legitimacy even if legally he is president," said Francisco Barahona, a political science professor at the University of Costa Rica.
On Sunday, Solis made another call for Costa Ricans to vote after acknowledging that the turnout seemed light in the morning.
"It appears that many people haven't come out to vote. I hope that they do it rapidly in the coming hours," he said.
Outgoing President Laura Chinchilla and others also urged people to get out and vote.
The son of a shoemaker turned small businessman, Solis studied history at the University of Costa Rica and obtained a master's degree in Latin American studies at Tulane University in the United States. He also has taught at Florida International University and at the University of Michigan.
Back home, he taught at local universities and worked in the country's Foreign Ministry at the time when President Oscar Arias was helping mediate an end to Central America's civil wars. He later served as an ambassador and as secretary general of the National Liberation Party.
Solis quit the party in 2005, complaining of corruption, and went back into teaching. He joined Citizen Action only in 2009.
Araya, 57, still appears on the ballot because Costa Rica's constitution doesn't allow for candidates to drop out.
His National Liberation party retains the largest voting bloc in congress, but its popularity has been eroded by corruption allegations and discontent over high unemployment under Chinchilla's administration.
Few had expected Solis to even make the second round of the presidential election, in a country where politics have been dominated for three decades by only two parties, National Liberation and the Social Christian Unity party.
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