The Iranian Parliament sued President Hassan Rohani for a constant power struggle between hardliners and moderate Iranian politicians and reformists close to the president.
The lawmakers accused the president of ignoring the law passed by parliament.
The Fars News Agency reported on Sunday that 190 of the 235 MPs present voted to sue the president, but did not provide any details.
There is still a clear link between the vote in parliament and the renewed nuclear negotiations in Vienna, which may require a compromise with the main enemy, the United States.
Soon after winning the parliamentary elections in February 2020, hardliners and conservatives put pressure on the president to resign.
They claimed that Rohani, through his pro-Western policies and the 2015 Vienna Nuclear Agreement, deprived the Islamic Republic of its ideological goals.
On the eve of the June presidential election, Rohani accused Congress hardliners of sacrificing national interests for domestic power struggles.
Rohani himself may not be able to run again after two terms, but hardliners also hope to reduce the chances of other political candidates who are moderate with him.