President Trump personally got on the phone with interlocutors during negotiations to reach a ceasefire, a senior US official told me on a call overnight. Negotiators knew a deal was close and that Hamas was starting to see the hostages as less of an asset and more of a liability. The official also emphasized that President Trump wanted to make clear to all parties that he stood behind the 20-point peace plan and would guarantee the implementation. This helped to build trust, the official added.