President of Germany them to the President of the Bundesrat. If the president dies, resigns or is otherwise removed from office, a successor is to be elected within thirty days. Horst Köhler, upon his resignation on May 31, 2010, became the first president to trigger this re-election process. Jens Böhrnsen, President of the Senate and Mayor of the Free Hanseatic City of Bremen and at the time President of the Bundesrat, assumed the powers and duties of head of state. Similarly, when Christian Wulff resigned in 2012, it was Horst Seehofer, Minister-President of Bavaria, as President of the Bundesrat, who assumed the powers
President of Germany duties. Under Article 59 (1) of the Basic Law (German Constitution), the president represents the Federal Republic of Germany in matters of international law, concludes treaties with foreign states on its behalf and accredits diplomats. Furthermore, all federal laws must be signed by the president before they can come into effect, but usually they only veto a law if they believe it to violate the constitution. The president, by their actions and public appearances, represents the state itself, its existence, legitimacy, and unity. The president's office involves an integrative role and the control function of upholding the law and the