It’s the worst possible outcome for Germany’s Green Party–Chancellor Angela Merkel wants to form a coalition with it! At first blush, this may not seem so bad. Wouldn’t it be nice if the Greens got some experience governing? Isn’t the whole point of a political party to get itself into government? But recent European electoral history tells us that whenever a left-wing party becomes a junior partner in a coalition led by a right-wing party (and contrary to its international reputation, Merkel’s CDU is quite right wing), it’s the thin end of the wedge. Here’s why.