The leadership contest was triggered when Farage stepped down after the EU referendum, although there has been persistent speculation that he could harbour ambitions to return.
The leadership contest was triggered after Farage decided to stand down after the EU referendum, saying he had done his bit for the party.
The leadership contest was triggered by Farage's departure after the referendum and then the refusal of Diane James to serve after she was elected the new Ukip leader in the first race to succeed him.
The contest was triggered by the resignation of Nick Clegg, who quit the day after the party lost 48 of its 56 MPs, leaving it the fourth party in the Commons.
It is such a safe Labour seat that though the contest was triggered by the conviction of the former Labour incumbent, Eric Illsley for expenses fraud the party managed to extend its majority a bit, to 11,771 votes.
The present leadership contest was triggered when Diane James quit after just 18 days in charge and has been thrown wide open after frontrunner Steven Woolfe quit in the wake of an altercation with a fellow MEP.
The contest was triggered by the fact the Phil Woolas, the Labour former immigration minister, was found guilty of an "illegal practice", in that he made "false statements of fact" in relation to the "personal character or conduct"of his his Lib Dem opponent, Elwyn Watkins.
That's because the contest was triggered when Phil Woolas, the former immigration minister, was stripped of the seat by an election court for making false claims about Elwyn Watkins, the Lib Dem opponent whom the Labour man beat in May by just 103 votes.
The contest was triggered by Alex Salmond's decision to stand down as First Minister and SNP leader.
The South Shields contest was triggered by the resignation of former Labour Foreign Secretary David Miliband as an MP.
