Crunch elections for Germany at perhaps the most pivotal moment since the fall of the Berlin Wall. Back then, it was about making a success of reunification. Now comes a reckoning over the German model that ensued. Under threat, the kind of global free trade that powers Germany’s export-driven economy. Instead it’s Trump’s tariffs, a Russian aggression that’s inching closer in not-so-far off Ukraine and an aging population that needs to replenish its workforce, but doesn’t want more migrants.