The Federal President, elected by popular vote for six years, is the Head of State, and normally acts on the advice of the Council of Ministers, which is led by the Federal Chancellor, and which is responsible to the Nationalrat. The electoral system for presidential elections is based on the majority principle where the winning candidate is required to obtain an absolute majority (a minimum of 50 per cent plus one vote) of the votes. To achieve such results, Austria has implemented the Two-Round System (TRS). Under these rules, a second election is organized if none of the candidates receive absolute majority. In the second round, only the two top candidates are allowed to contest.