Angela Merkel does not like to appear isolated on the eve of a European summit. And yet this is exactly what François Hollande set out to do in his interview to this newspaper and five others today. He suggested Ms Merkel was too preoccupied with domestic policies to give Europe the response it needed in a time of crisis. He demanded Berlin reverse its opposition to the decisions taken at the last summit, and gave short shrift to a German push for a federalised eurozone. To say the French socialist president lacks the bottle it takes to be a leader is to underestimate the determination he displays to put his case across.