 Complete the following phrase:  In 1961, after the resignation of Jânio Quadros, Vice-President João Goulart, a social-democrat with popular reform proposals, took office. He would, however, rule the country de facto only in 1963, after a referendum ended the parliamentary system approved by the Congress to prevent the Military Forces from overthrowing him from office due to his progressive views. During Goularts government, PSBs president João Mangabeira became Justice Minister. A 