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

The article argues that Marco Rubio, as US secretary of state and chief American diplomat, has a unique chance to promote global peace given major international crises such as the unresolved Iran war, escalating Russian attacks on Nato allies, and ongoing conflicts like the Ukraine war. The author frames this opportunity for Rubio to prove himself as a respected global statesman, particularly in relation to potential 2028 nomination bids.