Too old, too out of touch, gaffe-prone – the president of the United States has his critics. But has Russia's invasion of Ukraine put 80-year-old Joe Biden back in the saddle? The veteran Cold warrior sat down with the new British king on Monday, before flying to the NATO summit, where Washington's all-in attitude has been crucial for Kyiv and has put US might back at the heart of Europe's defence strategy.
We ask about tea at the palace and the tools at Biden's disposal to broker deals to ramp up the Alliance, this as Turkey's president bargains over Sweden's bid to join NATO.
We see why Washington's role is key, and how Biden plays his hand between the language of deterrence against a nuclear-armed Russia and the tempering of calls by hawks to supply fighter jets for Ukraine and approve Kyiv's bid to join the Alliance sooner rather than later.
Produced by Charles Wente, Josephine Joly and Imen Mellaz.