Between 2015 and 2017, Dîncu served as Deputy Prime Minister and Minister of Regional Development and Public Administration in the cabinet of former Prime Minister of Romania Dacian Cioloș. He then retired from politics for a while, but later returned and, on 2020, he was elected once again as a member of the Senate of Romania for PSD.
Between 2015 and 2017, Dîncu held key positions in the government of former Romanian Prime Minister Cioloș, including Deputy Prime Minister and Minister of Regional Development and Public Administration. He later stepped down from politics but returned to public life and, in 2020, was elected again as a member of the Romanian Senate for PSD.