 Complete the following phrase:  Robert Kaliňák born 11 May 1971 is a Slovak politician who was the Deputy Prime Minister and the Minister of the Interior of Slovakia from 4 July 2006 to 12 March 2018. He is a member of the Direction  Social Democracy party. Kaliňák previously served as Minister of the Interior from 4 July 2006 to 8 July 2010. Kaliňák resigned on 12 March 2018 after the murder of Slovak journalist 