Why is Tehran terrified of US senators meeting with the Iranian opposition?

Maryam Rajavi is an inspiring symbol of struggle for the liberation of the oppressed people of Iran

FreeIran, Iran, Iranian Opposition, MaryamRajavi, NCRI, pmoi, MEK, 

The Iranian regime has constantly tried to downplay the role and influence of the opposition coalition, the National Council of Resistance of Iran, and its main constituent, the People's Mojahedin Organization of Iran (PMOI/MEK), by portraying them as marginal and insignificant. Yet, its mainstream media and top officials are constantly betraying the regime's real feelings and fear of the group.