Better Together nailed down who Scotland's undecided voters were and where they lived: it treated Scotland as one vast marginal constituency, not a patchwork of regions.
With millions of voters apparently still undecided or open to changing their minds, the new Westminster balance of power remained unclear.
Shorten, who has long been touted as a future Labor leader, has also said he is undecided but would stand if there was no other contender.
Related: Battleground Britain: getting inside the minds of the UK's undecided voters "Happy to see Paxman back".
And you can read the overview from Deborah Mattinson, the founder of BritainThinks, on getting inside the minds of the UK's undecided voters.
(h/t: @jesseltaylor) Facebook Twitter Google plus Share Share this post Facebook Twitter Google plus close 11.20pm BST23 20 How Gallup picked participants for the town hall debate Gallup editor-in-chief Frank Newport tells Marketplace how the pollster picked the approximately 80 undecided voters to attend tonight's debate.
Most polls pointed to a late swing to Labour as more undecided voters broke for Miliband's party than for Cameron's in the final days of the campaign.
It's seven weeks since we first met our BritainThinks/Guardian panel of 60 undecided voters, drawn from five key "battleground" seats.
But, chapping on about 120 doors across a couple of hours, about half of those the canvassers spoke to were either undecided or uninterested in casting a vote for either side.
Those in middle and working-class occupations were just as likely to be undecided.
The town is also home to a concentration of undecided voters, perhaps because lower levels of deprivation here mean that people have more to lose, perhaps because – as one resident puts – East Lothian "looks both ways", to Edinburgh and the border.
