Mr Woolas won the seat by just 103 votes in May Former Labour immigration minister Phil Woolas will begin a legal bid to overturn a ruling that he should be banned from politics for three years.
He is seeking a judicial review of the ruling of a special election court, which stripped him of his Commons seat.
It found he had made false statements in his campaign to hang on to his Oldham East and Saddleworth seat.
Last week the High Court rejected his initial request for a judicial review, but Mr Woolas is making a fresh bid.
He is due at the Royal Courts of Justice at 1400 GMT and the case is likely to continue into Wednesday.
A decision about a by-election in Oldham East and Saddleworth is on hold until the legal process has finished.
The election court was told Mr Woolas stirred up racial tensions during a campaign which saw him retain his Oldham East and Saddleworth seat by just 103 votes from Lib Dem candidate Elwyn Watkins.
It ruled he was guilty of breaching the Representation of the People Act 1983 and barred him from standing for elected office for three years.
Labour deputy Harriet Harman has suggested he would not have a future in the party, even if he won an appeal. She told the BBC: “It is not part of Labour’s politics for somebody to be telling lies to get themselves elected.”
But that annoyed many Labour MPs who accused her of pre-empting the outcome of any appeal by the former MP.
Mr Woolas is raising cash for the next stage of his legal challenge to the election ruling and has reportedly received the backing of a number of prominent Labour figures.
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