Zelensky’s lost his chief of staff amid a €100m corruption scandal that the Kremlin will exploit – this is a disaster to Kyiv but also a sign that its system works, writes world affairs editor Sam Kiley

The Ukrainian president’s ‘right hand man’ Andriy Yermak said he is fully cooperating with authorities as the probe continues

Zelensky’s lost his chief of staff amid a €100m corruption scandal that the Kremlin will exploit – this is a disaster to Kyiv but also a sign that its system works, writes world…