The push by outspoken Cook Islands MP, Norman George, to change the Electoral Amendment Act is to go to the High Court.
Mr George was elected to parliament as a member of the Cook Islands Party later tried to join the Democratic Party, but this has not been accepted by the party's leaders.
In February Mr George filed two declaratory applications - the first dealing with the Electoral Amendment Act of 2007, which includes restrictions on party hopping.
Mr George wants this declared unconstitutional.
He has previously called the 2007 Electoral Amendment Act clumsy, contradictory and oppressive.
The two applications are to be heard in a July High Court hearing with all parties given until May the 19th to file submissions.