They might also be decisive in ensuring the party has its two-thirds majority.
The difference between the two blocs may seem small, but it could be decisive.
After one attempt at devolution failed in 1979, they played a decisive role in bringing down the Callaghan government, whose fall was followed by Margaret Thatcher.
Cameron's move added a sour taste to the highly emotional celebrations among supporters of the union after their decisive win in the referendum.
"It was far better to stop the momentum because it was assumed that if you had a referendum, which was legal, fair and decisive, that it would be decisive and that once you had that, that would be the end of it".
That they should miss two glorious opportunities to take a potentially decisive advantage seemed merely to underline the certainty of their looming ordeal.
This certainly broke from the agenda of Adonis's book, and it marked a decisive break, too, with an ambushed Clegg, who immediately got his objections into the media.
There is public goodwill if there is decisive and visionary leadership.
The German goalkeeper is nothing if not decisive and beats the Algeria forward to the bouncing ball by a split second, heading it out for a throw-in before the inevitable collision between the two players.
An away goal was always likely to be decisive, and when it arrived on 22 minutes through Nilsson – after United felt they should have been awarded a free-kick for a foul on Sturrock – the balloon had been pricked.
So on that basis, I think we've got no choice but to take decisive action to end the danger of the Conservative party.
