There was some discussion in the media recently on the fact that results of the same-sex marriage plebiscite showed a gap between the opinions of Liberal Party voters and most of their representatives. Safe Liberal seats almost all returned big majorities for Yes, even when their MPs were strongly of the opposite opinion. In the most striking case, Tony Abbott's electorate of Warringah voted 75% in favor of marriage equality.

There's been less attention paid to the revelation of another gap between the official Liberal Party attitude and the views of its supporters on another issue, that of giving preferences to the Greens.