Biden alters travel plans amid debt ceiling negotiations.

The Quad summit, which includes leaders from Australia, India, Japan, and the US, has been cancelled in Sydney due to the postponement of US President Joe Biden's trip. The leaders will instead meet at the G7 in Japan this weekend. The Quad is an informal group that promotes an open Indo-Pacific, which Beijing sees as an attempt to push back against its growing influence in the region. The cancellation of Biden's visit to Papua New Guinea could set back Washington's battle for influence with Beijing in the region.