Sometimes, their rule-bending works almost to perfection. The Fixed-term Parliaments Act of 2011, which stated that governments should always last five years, except in narrowly defined circumstances, protected the Tories during the early 2010s, when their austerity and economic policies were so unpopular that they trailed far behind Labour in the polls, and the chancellor George Osborne was booed at the London Paralympics.
No, it was standard game theory. If you’re in a coalition – even Coalition – how do you make sure that the other party doesn’t defect when the time seems right? How can you ensure that continued cooperation? Make it impossible for the defection to lead to an election, that’s how.
Thus that’s what was done.