Mr. Trump’s chief envoy to the talks, Steve Witkoff, has also sent mixed signals over what the United States wants. Over the past week, he has moved from suggesting Iran could have a limited nuclear program to saying Iran needed to fully dismantle it.

The United States and Iran are due to hold their second round of nuclear talks on Saturday, as what both sides are looking for in a deal begins to take shape.

Two top Israeli officials had an unannounced meeting in Paris on Friday with White House envoy Steve Witkoff to discuss the U.S.-Iran nuclear talks, three Israeli sources familiar with the meeting tell Axios.