 Complete the following phrase:  Until 1945, he was a member of Republican Peoples Party CHP which was the sole legal party. On 7 January 1946, he founded the Democrat Party along with Ad Menderes, Fuat Köprülü and Refik Koraltan beginning Turkeys multiparty period, which still goes on to this day. A peaceful transfer of power from the CHP to DP happened in the 1950 elections, after which Bayar as elected Turkeys third president on 22 May 1950. He was subsequently re-elected in 1954 and 1957, serving for 10 years as president. In that period, Menderes was his prime minister. He was overthrown and incarcerated in the 