As the contenders for the leadership of the National Party line up at the starting gate, they are each faced with a dilemma that confronts anyone seeking the leadership of a political party in a democracy.
This is because – for them - the leadership of their party is presumably not an end in itself, but is merely a stepping stone to the ultimate goal of becoming Prime Minister.
The contenders are embarking, in other words, on a two-stage process that requires them to win two elections in succession and to do so by gaining support from two quite separate and very different electorates.
The first contest demands that they should convince their own party members and activists that they are the candidate best able to represent and remain faithful to the party's central values and goals and to sell those values and goals to the wider public; while the second contest will be about persuading the (largely non-political) wider electorate that they are not so preoccupied with the party battle that they lack the breadth of vision and understanding that will equip them to tackle and resolve society's wider problems.
The difficulty is this: Those whose vote will decide the party leadership are just a very particular subset of the wider public; they will tend to be the party warriors, intent on winning the party battle, attaching great importance to ideological issues and requiring evidence that the fight will be carried to the enemy.