Once one party manages to unify pragmatic and more ideological support, the other will be locked out.
Forget talk of a "35% strategy", the Labour leader is constructing a new centre-left agenda with the potential to build a cross-class coalition.
At a time when millions of people are facing a cost of living crisis we should be helping all families and not just some.
The rush of policy announcements at conference seemed to miss out the area where change has been greatest.
The Labour leader is right to make defending consumers a mission of the left. But that means tackling failed state services too.
The party needs to show how new 'guarantees' will be delivered. If not, the Tories, with their offer of more money in parents’ pockets, could win the all-important female vote.
Cameron and Osborne are more concerned with defending bumper bonuses for bankers than measures to tackle the cost of living crisis.
With Labour preaching socialism and the Tories chasing after UKIP, Clegg will be rather pleased with how things have turned out.
The former PM's silence is evidence of his scepticism.