Prime Minister Benjamin Netanyahu’s aide Yitzhak Molcho resigned Sunday from Likud-Yisrael Beytenu’s delegation in coalition talks after he was advised that he could not serve on that team and remain Netanyahu’s special envoy to negotiations with the Palestinians.

Coalition talks between Likud-Beytenu and other Knesset factions started on Sunday, and Molcho was set to play a significant role in the negotiations for the forming of Israel’s next ruling coalition. However, Attorney General Yehuda Weinstein determined the lawyer couldn’t fill both functions at once.

Molcho is considered a close confidant of Netanyahu. In the past year he’s met with top US officials to discuss the stalled peace process, talked with Egypt’s leadership and held multiple sessions with Palestinian negotiators.