In 1981, via constitutional amendment, the president is again elected via popular vote, with a term of office of six years starting at the thirtieth of June of the year of the election. In the succeeding election on June 16, 1981 (third Monday of June); Marcos was again elected, with much of the opposition boycotting the election. In addition, the amendment also renamed the National Assembly into its Filipino translation as "Batasang Pambansa." In 1984, another amendment reinstated the office of the vice president. The election of the vice president is similar to the United States presidential election, in which a vote for the president is also a vote for the vice president, although this was later changed to a separate vote for each position. Marcos' Kilusang Bagong Lipunan (New Society Movement or KBL) won every presidential election of the Fourth Republic until 1986.