Initially reluctant, Aquino was eventually prevailed upon to heed the people's clamor, after one million signatures urging her to run for president were presented to her. Despite this, United Opposition (UNIDO) leader Salvador Laurel, did not immediately give way to his close friend's widow. Laurel only gave way to Cory after a political deal which was later reneged on by Cory after the election. According to Salvador Laurel's diary, Cory offered to Laurel that he would be her Prime Minister, she would step down in two years, he would name 30 percent of the Cabinet, and that she would appoint the remaining 70 percent after close consultations with him. As an example of the deal recorded by Laurel later being reneged upon, after Aquino succeeded as president, the office of Prime Minister abolished by the new Constitution in October 1986. Salvador Laurel eventually ran as Cory Aquino's running mate for vice president under the United Opposition (UNIDO) party. With that, the Aquino-Laurel tandem was formally launched to challenge Marcos and finally put an end to his two-decade rule.