Former US foreign policy advisor Samantha Power reflects on her early idealism on a new memoir—and why it has hardened with time

There was a vision there—but her successor now looks set to destroy it

Their interventions in the leadership race were appallingly timed, badly worded and will have no effect 

The former prime minister's doctrine of liberal interventionism shaped two decades of conflict. Now, as the west's power is waning, he says it needs updating

Smart medicine will save lives—but not money

The forces of nationalism are on the rise around the world. They could carry a demagogue to Downing Street

The government is promising a technological revolution—is it up to the job?

Leading candidate Zuzana Caputova has already shown the rest of Europe that a successful outsider doesn’t have to be an extremist

If only we bothered to gaze up from Westminster, we’d discover a more nuanced debate about terrorism, peace and the messy diplomacy of talking to people we don’t like

Vote Leave promised a deal