Catalonia has become accustomed in recent years to agonising investiture debates. Until 2012 - when Artur Mas was re-elected as president of the Generalitat thanks to the votes of the ERC -, the election of the new head of the government by Parliament had been practically a formality, but since 2015 - when, faced with the refusal of the CUP, Mas himself had to take a step aside in extremis to avoid the repetition of the elections - it has become a real headache. Now, when we have not yet reached the halfway point of the campaign, the crossed vetoes between formations already anticipate that after 14-F the arithmetic can draw another demonic scenario. The threat of a deadlock already hovers over the post-electoral horizon.