During his term as President, he has been strongly critical of the ruling Justice and Development Party (AKP) government, which he has accused of attempting to eradicate judicial independence and limit the rights and freedoms of citizens.

On 18 July 2012, he became a member of the CHP party council from the Management Science and Culture quota, though resigned on 26 May 2013 after he was elected as the President of the Turkish Bars Association.

On 10 May 2014, Feyzioğlu gave a speech during an event marking the 146th anniversary of the Turkish Council of State.

His speech lasted for over 40 minutes longer than scheduled, prompting the then-Turkish Prime Minister Recep Tayyip Erdoğan to interrupt and protest against the extension.

[13][14] The CHP eventually fielded Ekmeleddin İhsanoğlu as a joint candidate with the Nationalist Movement Party (MHP), who ended up losing the election to Erdoğan.

[16] Following the June 2015 general election, in which the CHP vote declined by 1%, Feyzioğlu called for Kılıçdaroğlu's resignation and a new extraordinary convention.

[19] When the Chairmen of all Bar Associations in Turkey began a protest against the government's proposals for changing the Bar Associations Law, Feyzioğlu failed to stand with them, and stayed silent when police physically attacked protesting chairmen.