Turkey was proclaimed as the Turkish Republic on 29 October 1923. Bayur was appointed to various embassies and consulates – London (1923–1925), Belgrade (1925–1927) and Kabul (1928) – before becoming Secretary General of the Presidency.
When the Democrat Party (DP) was founded in 1946, Bayur resigned from the Republican People's Party (CHP) and joined the DP. Following disappointment with the DP, he became one of the charter members of the Nation Party in 1948. Bayour became speaker of the party, before resigning from the Nation Party in 1953 because it was against Kemalism.[5] In the 2 May 1954 and 27 October 1957 elections, he was elected as a DP deputy from Manisa Province. After the 1960 Turkish coup d'etat, Bayur was arrested and then released in 1963. Following his release from prison, he began a career in journalism and started writing for the newspaper Kudret.
He died in Istanbul on 6 March 1980.
Books
1934: Yeni Türkiye Devletinin Harici Siyaseti ("Foreign Policy of the New Turkish State")
1940: Ahval-i Hazıra ("Circumstances of the Present State")
1940–67: Türk İnkılabı Tarihi ("History of the Turkish Revolution")
1946–50: Hindistan Tarihi ("History of India")
1963: Atatürk, Hayatı ve Eserleri ("Atatürk: His Life and His Works")
1974: XX. Yüzyılda Türklüğün Tarih ve Acun Siyasası Üzerindeki Etkileri ("The Influence of Turkishness on History and Global Politics in the Twentieth Century")