By having one of its shadow cabinet resign on the night of the vote, Labour snatched defeat from the jaws of victory.
Mark Reckless becomes the second ever elected Ukip MP.
Emily Thornberry's resignation cements divisions in the Labour party already highlighted by this by-election battle.
The shadow attorney general has resigned after tweeting a photo of a house in Strood displaying three England flags.
With attention on the Rochester by-election, the Chancellor makes his retreat.
Although there is concern about immigration among some ethnic minority residents, many fear a Ukip win would be bad news for the area.
A new poll shows 26 per cent would vote for a Green candidate capable of winning, compared to 24 per cent for Ukip.
Tories will frame the by-election as a Labour failure, the press thinks Ed Miliband's written it off, and local party activists have their own problems to contend with.
Polls have now opened in the constituency where immigration dominates debate, and Ukip is poised to seize power from the Tories.
Losses to Ukip mean the party has failed to gain any ground since 2010.
His pledge has failed.
Despite Theresa May's rhetoric, the Conservatives torpedoed an amendment to the Modern Slavery Bill which would protect foreign domestic workers from economic, physical and sexual abuse.
A fundamental economic tension runs through Ukip.
Ed Miliband can avoid a damaging split between his party's "beer drinkers" and "wine drinkers" on immigration, if he doesn't just rely on economic arguments.
Primary care providers need to offer services that reflect different needs, potentially opting to specialise for one group or another.
The Labour leader has doubled-down on his strategy of painting Cameron as the friend of the rich and himself as the friend of poor.
As the Labour party promises 1,000 new border guards, and more benefits curbs for migrants, is it entering a race to “toughen” up on EU migrants?
Child abuse is a cancer in our society and one that we can no longer treat with light touch regulation.
The European Space Agency shows what Britain, France, Germany, Belgium, the Netherlands, and 10 other European countries can achieve working together.
A former popstar's attack on the Labour leader's tax proposals could help him out.
Amid rising structural inequality, average earners are treading water. Regressive austerity politics has lulled the middle classes into a state of passive forbearance.
The Tories are in a better position on paper, but Ashcroft’s polls show the swing to Labour is far greater.
The former popstar Myleene Klass took the Labour leader to task on his tax proposals on ITV's The Agenda, telling him: "You can't just point at things and tax them" and that £2m - the mansion tax threshold - would only buy a "garage".
Emmanuel Macron warns that leaving the European Union would reduce Britain to the status of "Jersey or Guernsey".
The natural next step for Scotland's outgoing First Minister would be a return to Westminster.
Answering the attack.
The party is determined not to allow the Conservatives to make Labour failure the story of Thursday's by-election.
Even if Ed Miliband fails, there will be no Blairite restoration; it's time the old guard disbanded and reinvented itself.
Stephen Benn is perfectly entitled to take advantage of the present constitutional lay of the land, but Ed Miliband is right to kickstart a new debate on changing it.