A simple symbol has become a social media phenomenom in Turkey as women make their opinions known without words.

One of the most intriguing developments arising from an upcoming referendum has been the deep split within the Nationalist Movement Party (MHP), many of whose members are known as Gray Wolves. Devlet Bahceli, longtime leader of the ultranationalist group, supports the government and the proposed constitutional amendments to extend presidential powers. But several senior party members, along with various local leaders of the movement, have voiced their clear stand against the amendments and distanced themselves from Bahceli.

One of the most prominent leaders of the movement, Meral Aksener, is a woman in her early 60s who has been active in politics for more than two decades; she served in parliament for the MHP from 2007-15. Aksener is a respected figure in the party, but also a victim of intense rivalry among the party elites. Her critics have made several attempts to paint Aksener as a member of the Gulen movement. In September, the MHP Disciplinary Board expelled her after she formed a movement to try to remove Bahceli from the leadership.

For the past month, Aksener — along with a group of male MHP dissenters — has been running one of the most determined campaigns of the platform opposing the amendments. The ultranationalist base in Turkey respects and follows her. Her overcrowded rallies in different parts of Turkey have faced and overcome unexpected challenges. For example, in early February in Canakkale province, just as Aksener was about to start her speech, the power was cut off. However, she carried on with a megaphone and the audience used their cell phones’ flashlights.