A Fianna Fáil TD's calling for members of his own party to resign for their involvement in a polling controversy.
Fianna Fáil last night admitted party activists posed as market researchers to carry out polling, prior to 2007.
Sinn Féin and Fine Gael have both admitted to a similar practice - but say it has also ended.
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Fianna Fáil TD Marc MacSharry says his own party needs to take immediate action against its members.