A 1998 effort to repeal this law by referendum failed. In late 1999, Fujimori announced that he would run for a third term. Peruvian electoral bodies, which were politically sympathetic to Fujimori, accepted his argument that the two-term restriction did not apply to him, as it was enacted while he was already in office. Exit polls showed Fujimori fell short of the 50% required to avoid an electoral runoff, but the first official results showed him with 49.6% of the vote, just short of outright victory. Eventually, Fujimori was credited with 49.89%—20,000 votes short of avoiding a runoff. Despite reports of numerous irregularities, the international observers recognized an adjusted victory of Fujimori. His primary opponent, Alejandro Toledo, called for his supporters to spoil their ballots in the runoff by writing "No to fraud!" on them (voting is mandatory in Peru). International observers pulled out of the country after Fujimori refused to delay the runoff. In the runoff, Fujimori won with 51.1% of the valid votes. While votes for Toledo declined from 40.24% of the valid votes cast in the first round to 25.67% of the valid votes in the second round, invalid votes jumped from 2.25% of the total votes cast in the first round to 29.93% of total votes in the second round. The large percentage of votes cast as invalid suggested that many Peruvians took Toledo's advice to spoil their ballots. Although Fujimori had won the runoff with only a bare majority, rumors of irregularities led most of the international community to shun his third swearing-in on 28 July. For the next seven weeks, there were daily demonstrations in front of the presidential palace. As a conciliatory measure, Fujimori appointed former opposition candidate Federico Salas as the new prime minister. However, opposition parties in Parliament refused to support this move while Toledo campaigned vigorously to have the election annulled. At this point, a corruption scandal involving Vladimiro Montesinos broke out, and exploded into full force on the evening of 14 September 2000, when the cable television station Canal N broadcast footage of Montesinos apparently bribing opposition congressman Alberto Kouri for his defection to Fujimori's "Perú 2000" party. This video was presented by Fernando Olivera, leader of the FIM (Independent Moralizing Front), who purchased it from one of Montesinos's closest allies (nicknamed by the Peruvian press "El Patriota").