Tehran, Iran.- The call for dialogue by US President Donald Trump has generated rejection and doubts in Iran on its effectiveness, after the economic sanctions imposed by Washington and its withdrawal from the nuclear deal.

Iranian Vice President Ali Motahhari rejected the offer while calling on the president to ‘learn to speak with the language of respect.

The proposal is not appropriate given Trump’s verbal attacks, and talks under such circumstances mean ignominy, disdain and humiliation, Motahhari said, quoted by the Fars news agency.

‘Threats, sanctions and public relations acrobatics will not work, try to be respectful – for Iranians and for international commitments,’ Iranian Foreign Minister Mohammad Javad Zarif wrote on Twitter.

The negotiations require conditions and needs, and so far there is no sign in Trump’s words or actions in this regard, insisted Iranian Foreign Ministry spokesman Bahram Qassemi.

Ali Najafi Khoshroudi, a member of Parliament’s Committee on National Security and Foreign Policy, made a similar statement.

Trump’s proposal is only a futile effort to repair Washington’s damaged prestige after its withdrawal from the nuclear deal signed in 2015, he added.

Khoshroudi denounced the White House’s decision to withdraw from the pact and accused the government of trying to torpedo cooperation between Iran and the European Union. Meanwhile, the commander of the Iranian Revolutionary Guard Corps, Major General Mohammad Ali Jafari, rejected the offer of dialogue and assured the nation would resist all pressure.

On May 8, the US President announced the unilateral withdrawal of the Joint Comprehensive Plan of Action (JCPOA) and new economic sanctions against Tehran, actions rejected by the international community.

On Monday, however, he surprised everybody by stating his willingness to meet with his Iranian counterpart, Hassan Rouhani, without ‘preconditions’.

Shortly afterwards, Rouhani’s adviser, Hamid Abutalebi, coinditioned any meeting to the reduction of hostility towards Tehran and Washington’s return to the nuclear deal. ‘Respecting the rights of the Iranian nation, reducing hostilities and returning to a nuclear agreement are steps to be taken to pave the way for the talks,’ he wrote on Twitter.