sentences:  For the election of 1972 Biesheuvel served for a fourth and final time as "Lijsttrekker".The Anti-Revolutionary Party made a small win, gaining 1 seat and now had 14 seats in the House of Representatives.Biesheuvel subsequently returned as a Member of the House of Representatives and as Parliamentary leader, taking office on 7 December 1972 but he was still serving in the cabinet and because of dualism customs in the constitutional convention of Dutch politics he couldn't serve a dual mandate he subsequently resigned as a Member of the House of Representatives and as Parliamentary leader on 7 March 1973.