In the past week alone, he’s been talking up a plan to leverage the European Stability Mechanism, boosting the value of the euro when he said the currency’s salvation was “worth any effort,” and throwing cold water on the idea of a European bailout for Spain (picking a subtle fight with France while doing so). The week before, he got into a row with Jens Weidmann, the president of Germany’s Bundesbank (Germany’s central bank) — Weidmann has opposed the move for the European Central Bank to buy the debt of eurozone countries directly.