Iranian President Hassan Rouhani said Wednesday that Tehran was negotiating a comprehensive nuclear deal with world powers, not the U.S. Congress, and called a Senate committee’s vote to give Congress the power to review any potential deal a domestic U.S. matter.

The Iranian leader, speaking in a televised speech in the northern Iranian city of Rasht, also repeated earlier statements that his country will not accept any comprehensive nuclear deal with world powers unless all sanctions imposed against it are lifted.

“We are in talks with the major powers and not with the Congress,” Rouhani said, Iranian state television reported. Rouhani said the U.S. Congress’ power to review a nuclear deal with Iran was a domestic U.S. matter, the Reuters news agency reported.

He said Iran wanted to end its isolation from the world by constructing “constructive interaction with the world and not confrontation.”

Rouhani’s comments came one day after a Senate committee voted unanimously to give Congress the power to review a potential Iran nuclear deal after a June 30 negotiating deadline, in a compromise with the White House that allows President Obama to avoid possible legislative disapproval of the pact before it can be completed.