Anything to declare?
Are they don't knows? Or won't say? Or couldnae care less?
Those who have yet to declare their allegiance in the Glasgow North East by-election could determine the outcome. If they choose.
Out on the stump with the major parties today, most privately reckon Labour is still clearly in the lead, with polling due on Thursday.
The SNP analysis is that they have recorded a swing in their direction in the past day or so - and could magnify that trend before polling.
The key could lie in differential turnout: can the challengers motivate supporters more than the incumbents?
Plus the issue of those who have yet to state a preference to canvassers.
One SNP insider described it to me thus. Those who won't declare: have they genuinely yet to make up their minds - and are thus open to persuasion?
Or are they habitual Labour voters reluctant, for whatever reason, to state this to Nationalist canvassers?
Or will they absent themselves from the polling stations on Thursday?