Jason Greenblatt has announced that he will soon leave his post as the White House’s special envoy for the Middle East.

“It has been the honor of a lifetime to have worked in the White House for over two and a half years under the leadership of President Trump. I am incredibly grateful to have been part of a team that drafted a vision for peace. This vision has the potential to vastly improve the lives of millions of Israelis, Palestinians and others in the region,” Greenblatt said in a tweet.

Trump confirmed that Greenblatt will leave his administration “to seek work in the private sector,” and said that he will miss his “commitment to Israel and the search for peace between Israel and the Palestinians.

The departure raises questions about the future of the not yet revealed peace plan, which was designed by Greenblatt and Trump’s son-in-law and adviser Jared Kushner.

Last week, Greenblatt said that the peace plan will not be presented until after the Knesset elections. Israeli Prime Minister Benyamin Netanyahu echoed that sentiment by saying that that the peace plan will be released immediately after the next Israeli elections.

It is unclear when exactly Greenblatt will leave the administration, but he is expected to stay on until after the plan is released. Avi Berkowitz, an adviser to Kushner will be taking over after Greenblatt leaves.