“The vision of the United Nations has never been short on ambition, any more than our Constitution,” Biden said. But the president was facing a healthy measure of skepticism from allies during his week of high-level diplomacy. Eight months into his presidency, Biden has been out of sync with allies on the chaotic ending to the US war in Afghanistan. Ahead of his departure, the Biden administration announced plans to ease foreign travel restrictions to the US beginning in November. In addition to the gathering of Quad leaders, Biden will sit down for one-on-one meetings with Indian Prime Minister Narendra Modi and Japanese Prime Minister Yoshihide Suga.