David James "Mac" McAllister (born 12 January 1971) is a German politician of the conservative Christian Democratic Union (CDU). On 1 July 2010 he was elected Minister-President of the state of Lower Saxony, succeeding Christian Wulff, who resigned following his election as President of Germany. Until 2013, McAllister headed a coalition government with the liberal FDP, the Cabinet McAllister. In 2013, he was succeeded by Social Democrat Stephan Weil. Since 2014 he has been a Member of the European Parliament.