The South Shield by-election in 2013 was triggered by the resignation of which British Labour Party politician? 
South Shields by-election, 2013: The South Shields by-election was a by-election held for the United Kingdom House of Commons constituency of South Shields. South Shields by-election, 2013:  It was triggered by the resignation of David Miliband, the previous Member of Parliament (MP) and former Shadow Foreign Secretary, who had held the seat for Labour since 2001.
i don't know