The overwhelming majority of world leaders saw COP26 as an opportunity "press the restart button", US President Joe Biden stated, hailing the conference's progress as he left. After the conclusion of the summit of world leaders, his visit was over. This conference had just begun. After saying that he had arrived in Edinburgh Airport, he said: "We showed our support... and we have had a profound effect on the way the rest of the globe views the United States and its leadership position." He said that it was a "big error" to not have Xi Jinping, the Chinese leader, at the summit.