Family members of Israelis held hostage in Gaza appeared onstage with President Donald Trump during a post-inauguration rally in Washington, D.C., on Monday. They were joined by Noa Argamani, a former hostage who was freed by the Israeli army in June.

Steve Witkoff, a New York real estate developer and investor, was reportedly instrumental in delivering the message to Israeli Prime Minister Benjamin Netanyahu that Trump wanted

Trump sent Witkoff to ensure the ceasefire agreement advances to the second phase, which will require hashing out more thorny questions about Gaza’s future.