Joe Biden’s withdrawal injects uncertainty into foreign policy challenges

Joe Biden shaking hands with Volodymyr Zelensky (Alamy/PA)

Joe Biden’s withdrawal from the US presidential race injects greater uncertainty into the world at a time when western leaders are grappling with wars in Ukraine and Gaza, a more assertive China in Asia and the rise of the far right in Europe.

After his announcement, messages of support and gratitude for his years of service poured in from near and far.