德米斯图拉先生在告诉安理会他决定转赴他任时（见S/PV.8373），还承诺直到他的任务授权的最后一天，他将竭尽所能召集一个宪法委员会——一个重振政治进程的基础。这正是他一直以来所做的工作，他与叙利亚各方、阿斯塔纳担保国、小集团成员和其他利益攸关方保持接触。他一直在推动采取一切可能办法，成立一个有公信力和包容各方的宪法委员会。但是，正如他最近所指出，这场马拉松式的努力还需再跑一程。我们强调必须召集一个由叙利亚人主导、叙利亚人自主的宪法委员会，它对于按照第2254（2015）号决议重振全面政治进程至关重要。
When Mr. De Mistura told the Council of his decision to move on (see S/PV.8373), he also promised to do all he could up until the last day of his mandate to convene a constitutional committee — a stepping stone towards the revitalization of the political process. That is precisely what he has been doing, engaging with the Syrian parties, the Astana guarantors, the members of the small group and other stakeholders. He has been advancing the possibility of creating a credible and inclusive constitutional committee. However, as he recently pointed out, there is an extra mile to go in that marathon effort. We stress the importance of convening a Syrian-led and Syrian-owned constitutional committee, essential for reviving a comprehensive political process, in accordance with resolution 2254 (2015).