Marco Rubio has unique power to promote peace in the world. Why isn’t he doing his job? | Simon Tisdall

As chief US diplomat, Rubio could do great good – but he hasn’t yet. His pandering and neglect are a disgrace we shouldn’t ignore Viewed from the state department in Washington DC, the world is on fire – but record heatwaves are not to blame. The unresolved Iran war has badly…

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