The agreement, signed in early 1983, had five components, with the first encompassing the transfer program. Under the transfer program, all participating suburban districts would increase their African-American student population by 15 percent or reach a student population that was 25 percent black. The second element of the plant called for county students to voluntarily transfer to city magnet schools, a program which peaked in 1997 with nearly 1,500 students. The third component of the plan called for capital improvements to city schools, while the fourth and fifth elements included the financing of the plan, which was to be at the expense of the state of Missouri. The plan was approved by the court in mid-1983, and its provisions entered into effect starting in the 1983–1984 school year. Political pressures (particularly from Missouri Attorney General John Ashcroft) challenged the implementation of the plan. During the 1984 Missouri gubernatorial campaign, Ashcroft used the issue of busing to his advantage, claiming that the plan was "illegal and immoral". Ashcroft won both the Republican Party primary and the general election by campaigning against the plan. Despite Ashcroft's opposition and legal challenges, the plan significantly desegregated St. Louis schools. In 1980, 82 percent of black students in the city attended all-black schools, while in 1995, only 41 percent did so. By the late 1990s, roughly 13,000 students were enrolled in the transfer program. At the same time, members of the Missouri General Assembly and Missouri Attorney General Jay Nixon again began attacking the desegregation plan on the grounds of its costs. Nixon proposed that instead of spending money to transfer students, funds would be better spent improving derelict conditions in city schools, a view supported by St. Louis's first black mayor, Freeman Bosley, Jr.. After another legal challenge to the plan in early 1996 (based on recent U.S. Supreme Court rulings), the court ordered a review of the plan and a second settlement agreement. A settlement plan developed in the Missouri legislature called for reduced state money for the program and a focus only on funding magnet schools in the city and the voluntary transfer program. All but one of the suburban districts agreed to renew the agreement on these terms (Ladue School District was the exception), and in 1999, the renewed settlement was established. However, under the 1999 agreement, school districts have been permitted to withdraw from the voluntary transfer program starting in 2002, and two districts have done so (Lindbergh School District and Pattonville School District). A five-year extension of the voluntary transfer program was approved in 2007, allowing new enrollments to take place through the 2013–2014 school year in participating districts.