The Trump administration may be more stringent.
More recently, Trump and Iranian leaders have engaged in a heated war of words.
The President and his senior officials have ramped up the rhetoric against Tehran, promising to "crush" its economy with global sanctions and accusing it of fomenting terrorism and regional instability, while telling the country's citizens that their leaders are corrupt.
According to ISNA, lawmakers also want to Rouhani to explain why, after more than two years of signing a nuclear deal that curbed Iran's nuclear program in return for lifting of most worldwide sanctions, Iranian banks still only have limited access to global financial services.
"He must first return to the nuclear deal and implement it before negotiating can even be contemplated", said analyst Mohammad Marandi, of the University of Tehran, who was part of the nuclear negotiating team. But, typical of Trump's haphazard approach to foreign policy, it is not clear who is being eyed as the replacement.
Oil industry sources in India, the second-biggest importer of Iran's 2.5 million barrels a day, already said in June they're preparing to switch to other sources, while the leadership of Saudi Arabia, Iran's rival, offered its 2 million barrels a day in untapped production to patch the hole in the market.
Later, in an interview with the cable television network CNBC, Pompeo said Trump was prepared to sit down with the Iranians if they "make fundamental changes in how they treat their own people, reduce their malign behavior", and agree it is worthwhile to put in place a nuclear agreement "that actually prevents proliferation". And, unlike the North Korean leader, the Iranian president has no need for a photo op with the United States leader to use for propaganda purposes and as an ego boost.
Jafari is the same commander who said in November that Iran does not need to extend its range of missiles because the Islamic Republic already has the ability to reach far enough to strike American forces deployed in the Middle East if the nation is faced with US aggression.
Hours before Mr Trump's statement, Tehran ruled out talks with Washington.
He said oil prices, which Trump has been pressuring the Organization of the Petroleum Exporting Countries to bring down by raising output, will instead rise unless the United States grants waivers to buyers of Iranian crude. Under "appropriate" conditions negotiation can be helpful, but now such talks would just bring humiliation to Iran, he said, according to IRNA.
Hours before Trump's remarks, an Iranian foreign ministry spokesman said the US president's policies regarding Iran ― including the withdrawal in May from the Iran nuclear deal and the reimposition of sanctions ― undermined any chance of engagement between the two nations.
Iran's parliament announced Wednesday it would hold a special session to question President Hassan Rouhani about the plummeting currency and struggling economy. The US unilaterally withdrew from the agreement, which included other major world powers, including Germany, France, the UK, Russia and China.
Senior administration officials have also deployed increasingly aggressive rhetoric on Iran. The Iranian government swiftly dismissed them as unacceptable.
"To the regime, prosperity, security and freedom for the Iranian people are acceptable casualties in the march to fulfill the revolution", Pompeo said. With all the conditions subsequently added, however, it's likely that the Iranian government's reticence will seem more well-founded to a public eager for a diplomatic path to normalization.