On 17 May 2014, Kumar resigned, taking responsibility for his party's poor performance in the 2014 general elections, and was succeeded by Jitan Ram Manjhi. However, he returned to office in February 2015 following a political crisis in Bihar and won the state elections of November 2015. He was elected as the national president of his party on 10 April 2016. He resigned again on 26 July 2017 as Chief Minister of Bihar due to differences with the coalition partner, Rashtriya Janata Dal (RJD), following the naming of Tejashwi Yadav, the Deputy Chief Minister and RJD member, in a First Information Report alleging corruption filed by the Central Bureau of Investigation. Hours later, he joined the National Democratic Alliance (NDA) coalition, which had thus far been the opposition, and secured a majority in the assembly. He became Chief Minister again on the following day.