A 2009 referendum resulted in the constitution being suspended and presidential elections being delayed. The parliamentary elections went ahead, with an opposition boycott allowing the MNSD to win a majority. However, Tandja was removed from office in a 2010 coup and general elections were held in 2011, which saw Mahamadou Issoufou of the Nigerien Party for Democracy and Socialism (PNDS) elected president and the PNDS become the largest party in the National Assembly. Issoufou was re-elected in 2016 general elections, with the second round of the presidential elections boycotted by the opposition. The PNDS made significant gains in the parliamentary elections, but failed to win a majority.