Since this is a somewhat aviation-related topic, I don't think that I'm breaking my self-imposed JC-politics hiatus.
The Budget Control Act of 2011, which ended the debt-ceiling-fiscal-cliff calamity, had both Democrat and Republican support in the Sentate, and the House, and the President signed it. They all knew the sequester was in it, and it was intentionally designed to be as automatic and as inflexible as possible. They all bear the blame for not negotiating something better, as they should have. Both sides are equally responsible.