Houses in Oldham
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Oldham by-election test for Labour and Jeremy Corbyn

1 December 2015 Last updated at 11:00 GMT

Campaigning is continuing in Oldham West and Royton, where voters will pick a new MP following the death of Labour politician Michael Meacher.

Thursday's by-election has been described as Jeremy Corbyn's first test at the ballot box.

Adam Fleming reports.