He took part in a committee, which was tasked to reflect the ordeal of the Turkish population in the Balkans after the Balkan Wars (1912–1913).
During the Turkish War of Independence (1919–1923), he took side with Mustafa Kemal Pasha (Atatürk), and became a member of the 1st Parliament of Turkey.
He was appointed Director of the Press and Information.
Then, he served as the Minister of Education from 13 December 1920 to 20 November 1921 in the 1st, 2nd and the 3rd cabinet of the Executive Ministers of Turkey.

After the proclamation of the Republic, he served again as the Minister of National Education in 4th government of Turkey between 3 March 1925 and 21 December 1925.
In 1931, he was appointed Ambassador of Turkey to Romania in Bucharest.
In 1943, he entered in the parliament from the Republican People's Party.
In 1950, he joined the newly founded Democrat Party.
Several years later, however, following the struggle for the "Right to Prove" in press, he co-founded the Liberty Party.
He lost his seat when his political party was defeated in the 1957 general election.
He took part in a committee, which was tasked to reflect the ordeal of the Turkish population in the Balkans after the Balkan Wars (1912–1913). During the Turkish War of Independence (1919–1923), he took side with Mustafa Kemal Pasha (Atatürk), and became a member of the 1st Parliament of Turkey. He was appointed Director of the Press and Information. Then, he served as the Minister of Education from 13 December 1920 to 20 November 1921 in the 1st, 2nd and the 3rd cabinet of the Executive Ministers of Turkey.
After the proclamation of the Republic, he served again as the Minister of National Education in 4th government of Turkey between 3 March 1925 and 21 December 1925. In 1931, he was appointed Ambassador of Turkey to Romania in Bucharest. In 1943, he entered in the parliament from the Republican People's Party. In 1950, he joined the newly founded Democrat Party. Several years later, however, following the struggle for the "Right to Prove" in press, he co-founded the Liberty Party. He lost his seat when his political party was defeated in the 1957 general election.
Hamdullah Suphi Tanrıöver