sentences:  The PRI candidate failed to win a single state in the 2006 presidential election.In the 2006 legislative elections the party won 106 out of 500 seats in the Chamber of Deputies and 35 out of 128 Senators.In 2007 the PRI re-gained the governorship of Yucatán and was the party with the most mayorships and state congresspeople in the elections in Yucatán (tying with the PAN in the number of deputies), Chihuahua, Durango, Aguascalientes, Veracruz, Chiapas and Oaxaca.