Iranian president Hassan Rouhani was set to be inaugurated in front of foreign guests on Saturday, but already faces criticism for reportedly bowing to conservatives in forming a new government.
Mr Rouhani, a 68-year-old cleric considered a political moderate, began his second term on Thursday when he was sworn in by supreme leader Ayatollah Ali Khamenei.
But Saturday's ceremony in parliament is the glitzier affair, with guests including EU foreign policy chief Federica Mogherini, who has vowed to continue building ties with Iran despite mounting pressure from the US to keep the Islamic republic isolated.
Some of Iran's older friends also arrived in Tehran, including Zimbabwean president Robert Mugabe.
The emir of Qatar, which has fallen out with its Gulf allies in part over ties to Iran, was notably absent despite attending Mr Rouhani's last inauguration in 2013.
But among Iranians, the real attention was on who would be named to Mr Rouhani's new cabinet.
He has already been barraged with criticism over indications that women would again be entirely absent and that his reformist allies would barely be represented.
His last government had three women among a large cohort of vice-presidents, but they lacked ministerial roles that would require approval by parliament.
"It was the reformists that allowed him to win the elections in 2013 and 2017 … he must listen to those who supported him," Rassoul Montajabnia, of the reformist National Confidence party, told the Arman newspaper.
Mr Rouhani won a convincing victory over hardline cleric Ebrahim Raisi in the May presidential election, vowing to continue rebuilding ties with the West and easing social restrictions at home.
That helped win over the reformists - whose candidates dropped out of the last two elections to ensure his victory.
"Rouhani created a lot of expectation and now there is a sense that he is retreating from his promises," Ali Shakourirad, head of the reformist People's Unity Party.
The absence of women was down to pressure from religious conservatives behind the scenes, Mr Shakourirad added.
"Rouhani didn't want to make his task any more complicated than it already is," he told AFP.
The final line-up is due to be announced in the coming days, and must then be approved by parliament.
Back room bargaining
Despite the furore, the reshuffle is not expected to touch big names such as foreign minister Mohammad Javad Zarif and oil minister Bijan Namadar Zanganeh.
"The main ministers are very likely to stay in place," said Henry Smith, Iran analyst with consultancy Control Risks.
"Rouhani will have a fairly smooth time getting parliament to approve his appointees. He's been doing back and forth consultations with the necessary power centres - the parliament speaker, supreme leader, the Revolutionary Guards - and I don't think you'll see a significant change in economic or indeed social policy," he added.
Despite his efforts to build back room consensus, hardliners have given Mr Rouhani a rough ride since his election, perhaps worried at the growing strength of the reformists.
The arrest of his brother on corruption charges was interpreted by some as a shot across the bow by the hardline judiciary.
Mr Rouhani also triggered a war of words with the Revolutionary Guards after criticising their outsized role in the economy, although analysts say this is part of a cautious realignment of Iran's policies to balance its security priorities with the need to attract investment.
"Rouhani has no interest in pushing the Revolutionary Guards totally out of the economy. It's about creating enough space so Iran can get the foreign investment and technology it needs," said Mr Smith.
Investment has belatedly started to arrive in the wake of the 2015 nuclear deal that eased sanctions, notably through last month's billion-dollar gas deal with France's Total and China's CNPC.
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Billions more are needed to jump-start the stagnant economy and tackle a jobless rate of 12.7 per cent.
But with Washington imposing yet more sanctions this week, Iran's re-engagement with the world remains largely stalled.
"The problem is Iran feels the need to react to these moves by the US, which just gives the US fuel," said Mr Smith.
"What cooler heads would suggest is not to respond in kind and try to present themselves as the more rational party, but politically that is very difficult to do."
