As Donald Trump shakes up the global order, German Chancellor Angela Merkel is being pushed closer toward a more predictable partner in Moscow. Now they're in the same corner trying to shield businesses from U.S. sanctions, defend the Iran nuclear accord ditched by Trump and rebuffing American objections to a new gas pipeline linking Russia and Germany. Rapprochement with Russia is now a core policy objective in Berlin. Even as the German leader seeks out Russia, Trump's spurning of global conventions on climate, trade and the Middle East is spooking her. "Putin likes the irritation that Trump has created with...