Iran's outgoing moderate President Hassan Rouhani said his successor had been elected in the previous day's vote, without naming the widely expected winner, Raisi.
State-linked opinion polling and analysts put hard-line judiciary chief Ebrahim Raisi as the dominant front-runner in a field of just four candidates.
The deal's collapse with President Donald Trump's decision to unilaterally withdraw America from the agreement in 2018 spiralled into a series of attacks and confrontations across Middle East.
No trust left in candidates, uncertain future: Voices of Iranians ahead of the presidential election
Hopefuls are running to replace the term-limited President Hassan Rouhani, whose promises of a bright economic future withered as Tehran’s 2015 nuclear deal with world powers collapsed.
Assad's win was not in doubt, in an election where officials said 18 million were eligible to vote.
In Beirut, a few hundred of Assad supporters turned up early at the hilltop embassy outside the capital to cast their ballot.
Despite having years' worth of projects lined up in Hollywood, the star still hasn't ruled out one day vying for the Oval Office.
However, there has been no communication between outgoing US President Donald Trump and president-elect Joe Biden, which is unprecedented in recent memory.
It is increasingly clear that there is no fact, no piece of evidence and no court ruling that will dissuade Trump from trying to mislead Americans about President-elect Joe Biden's victory.
Former vice president Joe Biden was declared the winner of the presidential election on November 7 after flipping Pennsylvania, Michigan and Wisconsin to the Democrats' column.
Such a briefing comes in the absence of an official daily intelligence briefing by the outgoing Trump administration to Biden and Harris.
Last week, the mainstream US media declared Democratic presidential candidate Joe Biden as the winner of the November 3 presidential election and said that Donald Trump has lost.
For the liberal opposition, the vote will show whether celebrity candidate Ksenia Sobchak has enough support to head a new liberal party.
Here are key dates in the life of the 65-year-old former KGB officer
Key statistics about Russia as the country goes to the polls on Sunday for a presidential election.