At the beginning of her third term, Merkel has more power in Germany and Europe than any chancellor before her. There hasn’t been such a strong majority behind a government in Germany’s parliament, the Bundestag, since the first grand coalition half a century ago. In the midst of the European crisis, Germany has become the undisputed dominant power in Europe. The grand coalition will hand Merkel a majority she could use to shape Germany and Europe and address major issues, including constitutional reforms in Germany and the reform of European Union institutions. … (O)fficials at the Chancellery are forging plans...