The party was formed by former members of the conservative Islamic Virtue Party three years ago.
The Virtue Party's popularity has fallen in recent months, along with the popularity of the governing parties.
The Virtue Party was closed for nonviolent activities more often defined as thought crimes.
Instead he is fighting efforts by younger politicians to form the Virtue Party without consulting him.
The Virtue Party was the first party in this tradition to have genuine intra-party democracy.
Although mayors from all major parties are under investigation, the largest group is from the Virtue Party.
The constitutional court closed the Virtue Party on June 22, 2001.
In June, the country's highest court banned the Virtue Party, the main opposition group, saying it was a center for antisecular activities.
It will be the second party formed by politicians with ties to the former Virtue Party and its predecessor.
After a while, he reseigned from the Virtue Party.