A proposal to split an upcoming November ballot question into three separate initiatives opposing Central Maine Power’s transmission line project now has a lawsuit pending against it.

The lawsuit was filed by Democratic Rep. Christopher Caiazzo of Scarborough at the Cumberland County Superior Court. The suit argues that the referendum question is designed to block construction of the New England Clean Energy Connect power line, and that it should be broken up into three separate parts so voters can have a chance to express their opinion on the issues.

Caiazzo first presented his argument in May by sending a letter to Maine’s Secretary of State, Shenna Bellows, but she rejected it. He is now asking the court to reverse the decision on the basis of wording.

The project, designed to bring hydroelectric power from Quebec through Maine to Massachusetts, has already broken ground on construction.