Last week, a Herald-Digipoll survey showed support for the Greens at 12.6 per cent. This was heady stuff for a party that had polled below 10 per cent for most of the past decade. The Greens were being talked about as possibly being a pivotal factor in post-election negotiations. Now, however, they will be eyeing forthcoming polls with some trepidation. A party member's co-ordination of the defacing of hundreds of National Party billboards has echoes of some of the Greens' more extreme protests. It may be enough to make some of their new-found supporters think again.
There was nothing particularly heinous about the attack. Billboards are routinely vandalised during election campaigns. In this instance, about 700 belonging to National were altered by activists, who fixed subversive slogans, such as "the rich deserve more".
But this assault was organised by a member of a party that has always prided itself on conducting clean campaigns. In one swoop, Jolyon White's link to the Greens sank them to the depths of other parties.
To make matters worse, he is the partner of the executive assistant of the Green co-leader Russel Norman. She had not told Dr Norman of the planned action, which involved about 50 people, some of whom must surely have been Green Party members. This led the Greens to initially deny responsibility for defacing the billboards.
When the facts emerged, Dr Norman, unsurprisingly, pronounced himself "incredibly disappointed". He said that he did not know about the attack. There seems little reason to doubt that. It went against all that he has tried to achieve, not least in enhancing the party's appeal to middle-of-the-road voters who had previously considered some of the Greens' policies too radical.