Part of the prerogative of the president is the right to call national referendums, and to call regular and extraordinary elections to the House of Representatives, the Council of the Republic and local representative bodies. He can also dissolve the chambers of the Parliament, as the Constitution permits. It is his duty to appoint the prime minister of the Republic of Belarus with the consent of the House of Representatives, and to decide the structure of the Government of the Republic of Belarus. The president signs bills, and has the right to return it, fully or in parts, with objections to the House of Representatives. He also appoints– and can dismiss– the deputy Prime ministers, the ministers and the other members of the Government, and he decides in cases of resignation of the Government, or any of its members. With the consent of the Council of the Republic, the president appoints the chairperson of the Supreme Court, and can dismiss this chairperson and other judges. The president is supposed to deliver annual messages to the Parliament, and has the right to participate in the sessions of Parliament and its bodies. In instances of strike, the president has the right, in instances specified in the law, to defer or suspend a strike for a period not exceeding three months. In international affairs, it is the president's duty to conduct negotiations and sign international treaties, and to appoint and recall diplomatic representatives of the Republic.