The last Senior Ministers of Singapore were Goh Chok Tong, the second Prime Minister of Singapore and S Jayakumar, former Deputy Prime Minister of Singapore. This job has been held by Goh since August 12, 2004, and used to be held by Lee Kuan Yew, the first Prime Minister of Singapore, from November 28, 1990, until August 12, 2004, and S. Rajaratnam, former Deputy Prime Minister of Singapore, from 1985 to 1988. After Goh Chok Tong became Senior Minister, a new ministerial job, the Minister Mentor, was created and given to Lee Kuan Yew. On 26 March 2009, Prime Minister of Singapore Lee Hsien Loong announced that the Deputy Prime Minister of Singapore (DPM) S. Jayakumar would let go of his job as the DPM and become Senior Minister in the Prime Minister's Office. 