The party held the majority in the 4th Parliament.[1] It was also very influential outside the parliament.[4] The party's opposition to Reza Khan, lead to losing its majority status in the 5th Parliament after he rigged the elections to have a parliament pliant to his views.[2]
^ abHaddad Adel, Gholamali; Elmi, Mohammad Jafar; Taromi-Rad, Hassan (31 August 2012). "Party". Political Parties: Selected Entries from Encyclopaedia of the World of Islam. EWI Press. pp. 5–6. ISBN9781908433022.