The parties said this in their joint memorandum to the Senate Committee on Constitutional Review headed by the Deputy President Ike Ekweremadu.
A number of parties have lost their governors and representatives to rival political parties since the 1999.
The most beneficiaries of the defected representatives has been the Peoples Democratic Party, with at least about three governors abandoning the parties that brought them to power to the PDP.
They are former Imo State Governor Ikedi Ohakim, Abia State Governor Theodore Orji, who were elected under the banner of the Progressive Peoples Alliance, and Bauchi State Governor Isa Yuguda, who abandoned the All Nigeria Peoples Party for the PDP.
Writing under Cross Carpeting the parties recommended that “Sections 68(1)(g), 109(1)(g), 135 and 179 of the 1999 Constitution to make it mandatory that all elected persons into public offices, including members of the National and state Assemblies, local government chairmen and councillors, including those elected under proportional representation, governor, deputy governor, the President and Vice- President shall vacate their seats being persons whose election to the said office was sponsored by a political party, they become members of another political party before the expiration of the period for which that House was elected or the expiration of their tenure.”
According to the memorandum, the parties took the decision at their meeting in Uyo, Akwa Ibom State where participants drawn from the 57 registered political parties met.
Out of the 57 registered political parties, the document indicated that participants were drawn from only 40 political parties.
Though the names of the parties that participated in the drawing and submission of the memorandum was not listed, it was however stated that “the leadership of Inter Party Advisory Council and Conference of Nigerian Political Party” were in attendance.