TEHRAN, Iran • Iran’s president back-pedaled Tuesday on possible talks with Donald Trump, saying the U.S. president must first lift sanctions imposed on Tehran, otherwise a meeting between the two would be a mere photo op.

Hassan Rouhani’s change of heart came a day after Trump said Monday that there’s a “really good chance” the two could meet on their nuclear impasse after a surprise intervention by French President Emmanuel Macron during the G-7 summit to try to bring Washington and Tehran together after decades of conflict.

“Without the U.S.’s withdrawal from sanctions, we will not witness any positive development,” Rouhani said Tuesday, adding that Washington “holds the key.”

On Monday, Rouhani expressed readiness to negotiate following America’s pullout from the nuclear deal.

“If I knew that going to a meeting and visiting a person would help my country’s development and resolve the problems of the people, I would not miss it,” he had said.