Great-power tension and political instability shaped the day’s politics. In Beijing, Xi Jinping opened his summit with Donald Trump by warning that any U.S. mishandling of Taiwan could lead to conflict, underlining just how fraught the relationship remains even as both sides claimed some common ground on keeping the Strait of Hormuz open and discussing trade, energy and fentanyl controls. In Britain, Labour’s troubles deepened as Health Secretary Wes Streeting quit the government and openly challenged Keir Starmer’s leadership after bruising local election results, sharpening questions about the party’s direction. In Cuba, an acute fuel shortage has pushed the power grid to the brink, with diesel and fuel oil exhausted, blackouts spreading and protests erupting in Havana. And in Washington, Border Patrol chief Michael Banks’ abrupt resignation added to signs of churn inside the Trump administration’s immigration apparatus.