Discussions on trade, climate change, and international security face new challenges as Trump’s policy shifts—from trade tariffs to his approach to the Ukraine war.

Leaders of the Group of 20 major economies began arriving on Monday at Rio de Janeiro's Modern Art Museum for their annual summit, bracing for a shift in the global order with the return to power of U.

G20 world leaders gather in Rio de Janeiro as summit officially opens Watch live as world leaders such as Sir Keir Starmer and Xi Jinping meet at the G20 summit in Brazil on Monday, the first time a British premier has met the Chinese leader since 2018.