Alice Weidel, co-leader of the far-right Alternative for Germany party, and Christian Lindner, leader of the liberal Free Democratic Party, take part in a discussion at a TV studio in Berlin on Sunday, the day of Germany's federal election. Photograph: Andreas Gora - Pool/Getty Images) Berlin’s political mating game gets under way on Monday morning with a misleading air of cosy familiarity. On Sunday 84 per cent of German voters, the highest turnout since the 1990 unification election, pulled the plug for good on the so-called “traffic light” coalition headed by Social Democratic (SPD) chancellor Olaf Scholz. The unpopular 66-year-old...