North Carolina's highest court on Monday tackled the question of how far the Republican-led legislature can go to minimize new Democratic Gov. Roy Cooper's ability to pursue goals that helped him get elected last year by reshaping state government.

The state Supreme Court heard arguments in a lawsuit brought by Cooper that claims legislators violated North Carolina's constitution this spring by passing a law diminishing the governor's role in managing elections.

It's the first time the high court has waded into the ongoing political battle between lawmakers and Cooper that began after he narrowly beat incumbent Republican Gov. Pat McCrory last November. GOP lawmakers have sought to diminish Cooper's powers ever since.

The governor's lawyers told the seven-member court that the General Assembly violated the constitution's separation of powers requirement by reshaping the state elections board in ways that entrench Republican advantage. Elections boards are examples of the types of bodies that implement laws, functions that the state constitution requires from governors.