I'm sure I read that if it's in the manifesto, they can crack on and implement it with no further consultation (eg there's a mandate for it), but if it's not in the manifesto they have to jump through all the hoops that lead to it failing last time? Or have I got that wrong...
I just assumed it was the sort of thing that would require a parliamentary majority...didn't realise that having something on the manifesto and winning an election was enough.
This. Electoral reform is one for after you've won an election and formed a government, not before.