D onald trump promised to end the war in Ukraine within a day. Now, insiders say, he hopes to secure a ceasefire within his first 100 days—ie, by the end of this month. He has started to refer to the conflict as “Biden’s war”. But if it drags on, he worries it will increasingly become his.

Sunday's attack, which killed 34 people and injured 117, was widely condemned, with Germany calling it a war crime.