Gingrich, Giuliani, and other hard-line USA politicians have in recent years been paid to speak at the annual rally, which was officially sponsored by the Paris-based National Council of Resistance of Iran (NCRI), an umbrella bloc of groups of exiled Iranians opposed to the government in Tehran. "The end of appeasement is over", he told the conference of the NCRI, whose main faction is the People's Mujahideen Organisation of Iran (PMOI) once deemed a terrorist group by Washington and Europe.
In may, Giuliani said that President trump is interested in regime change in Iran. "The wheels of change have started turning", Maryam Rajavi, who heads the group, told reporters at the conference.
Iranian officials contend there is no objective reason for the currency crash, but the protests clearly demonstrate the public's lack of faith in the regime, which only exacerbates the country's economic instability.
However, the weekend protests quickly acquired a political edge, with people shouting slogans against Iran's ultimate authority, Supreme leader Ayatollah Ali Khamenei, and other top officials, calling them thieves who should step down.
"They bring to bear economic pressure to separate the nation from the system".
Rudy Giuliani said efforts to salvage the nuclear deal dumped by Donald Trump suggest the prime minister and other signatories want the Islamic Republic to develop a nuclear arsenal.
Most global sanctions imposed on Iran were lifted in early 2016 under the nuclear deal that saw Iran curbing its disputed nuclear programme under close United Nations monitoring.
And he blasted countries attempting to find ways to allow their companies to keep operating in Iran under the threat of penalties for United States sanction-busting.
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"If it continues, I will not be able to continue my business", said Reza, a shopkeeper in the bazaar who refused to give his full name.
"Freedom is right around the corner ..."
Gingrich, Giuliani, and other USA politicians have been heavily paid to speak at the annual Paris rally in recent years.
At the same conference previous year, John Bolton, who was appointed Trump's national security adviser this April, told NCRI members they would be ruling Iran before 2019.
Following the pullout, Iran gave the European sides to the pact to provide solid guarantees within a time limit that Iran's economic interests would continue to be met despite USA sanctions.
The agreement was made between Iran, the US, UK, Russia, France, China, Germany and the European Union to ensure Iran's nuclear programme was exclusively peaceful.
US President Donald Trump, after withdrawing from the landmark nuclear deal, has ramped up pressure on Washington's allies to cut off purchases of Iranian oil, which accounts for 60 per cent of the Islamic republic's income. However, the protests earlier this year took place largely in Iran's provinces rather than in Tehran.
Iranians have been hit by rising prices, and record levels of unemployment have left a third of under-30s out of work.