When one diplomatic dance ends, Prime Minister Narendra Modi and President Donald Trump have sought partners elsewhere. Andrew Harnik/Getty Images December 18, 2025 Trump tariffs and warming India‑China ties have silenced the Quad partnership … for now Hyeran Jo, Texas A&M University and Yoon Jung Choi, Texas A&M University; Sejong Institute A summit between the leaders of the US, India, Japan and Australia was expected in November. But it never happened.