David Cunliffe's popularity began to wane almost as soon as the media spotlight ceased illuminating the contest over the Labour Party's parliamentary leadership. As that contest fades into the recesses of public memory, it seems his honeymoon, now over, was fleeting, lacklustre, and, by all appearances, fruitless.
From now on, when Cunliffe receives sustained media attention his performance as an Opposition leader will be intensely scrutinised. That scrutiny will create unrelenting pressure to perform well not merely during much practised set-piece speeches, but also during the daily cut and thrust of parliamentary theatre. Assessments of relevant polling data will be increasingly unforgiving since Cunliffe's acolytes spent much of the last two parliamentary terms pointing to stagnating polls to undermine both Phil Goff's and David Shearer's leaderships.
Scepticism of Cunliffe's sincerity lies in the Machiavellian manner of his political rise where the ends of grasping power justify the means, however immoral or obnoxious. Matters will be complicated for Cunliffe should any of his caucus colleagues decide to treat him to a dose of his own medicine by repeatedly raising the prospect, and then refusing to rule out the spectre, of a leadership spill.
The next few months won't be without major obstacles for Cunliffe, the Christchurch East byelection at the end of this month being one. The campaign of the incumbent party's candidate, Poto Williams, could be successful without having to reach her predecessor's 5000 vote majority. However, because both National and the Greens have selected relatively unknown candidates and have chosen not to fully resource their campaigns, success will depend largely on Williams achieving significantly higher than an election victory. Anything less than a good result here will reflect poorly on Cunliffe's tenure as leader and will call into question his ability to turn out the party's rank and file.