No one really questions Angela Merkel’s supremacy in Germany but losing the key state of Lower Saxony in a Sunday election, albeit by the narrowest of margins, means we’ll have to put on ice proclamations that her re-election for a third term in the autumn is now merely a procession. The centre-left SPD and Greens won the state by a single seat. Merkel and others will speak about the result today. What it probably does affirm is that the Chancellor will be extremely cautious about agreeing to more euro zone crisis fighting measures before the national election is safely out of the way.