The millions strong demonstration on the second anniversary of martyrdom of General Qasem Soleimani and his companions frightened the Americans, al-Lami said in an interview with al-Nujaba TV on Friday.
The demonstration was the proof that people delegated their power to the Resistance in Iraq, he added.
Al-Lami also said that the withdrawal of American forces from Iraq was a lie and the US has strengthened its presence in the country.
He said that the only way for Iraq to achieve political and economic stability was through the withdrawal of American forces.
General Soleimani and former Iraqi Mobilization Unit Forces commander Abu Mahdi Al-Muhandis along with eight other companions were assassinated by the US army in a terrorist drone attack on January 3, 2020.
The attack was carried out at the direct order of former US President Donald Trump.
In retaliation, Iran carried out a missile attack to Ain al-Assad airbase near Baghdad where American forces had been located.