Why has BW switched so heavily to the left? (or well, to be precise, to Grüne in particular). Wasn't it ruled by CDU for decades up until like 2011 much like neighbouring Bavaria?
I’m sure some of the German posters will be able to give you a more detailed answer, but my understanding is that it’s a combination of voters getting tired of the CDU after so long in power, Kretschmann being very personally popular, and the Green’s somewhat small-c conservative eco-liberalism being a very good fit for the state (with Freiburg and Tübingen providing a base as two of Germany’s most environmentalist cities). It’s also worth bearing in mind that Baden-Württemberg is much less conservative than Bavaria.