[2] She founded the Anatolia Party on 14 November 2014 and led it until its disestablishment in December 2015.

[3] She joined the Republican People's Party (CHP), and entered the Turkish Grand National Assembly as a deputy from Ankara after the general elections on June 12, 2011.

[3] She was an outspoken supporter of the 2013 protests and on one occasion sat on the ground to prevent a water cannon vehicle passing, an act for which the pianist Fazıl Say suggested that she take over the leadership of the CHP.

[4] On 31 October 2014, Tarhan resigned from the CHP, citing the weak leadership and the lack of strong electoral prospects as her reason.

As a prominent nationalist, her resignation was also attributed to the more liberal approach taken by party leader Kemal Kılıçdaroğlu.