RALEIGH, N.C. (AP) - North Carolina Democratic Gov. Roy Cooper says the Republican-controlled legislature is again trampling on his authority, this time through the state budget it passed this summer.

Cooper expanded Tuesday a lawsuit he originally filed in Wake County court in May complaining about laws his lawyers argued prevented him from performing his gubernatorial duties. Now he's challenging portions of the two-year budget that Cooper vetoed. The House and Senate overrode that veto.

One of the disputed provisions requires the governor to include money in his future budget proposals for taxpayer-funded scholarships for private school tuition, but Cooper says it's unconstitutional for legislators to tell him what to put in his spending recommendations.

Other challenged provisions direct how to spend federal block grants and a nationwide emissions settlement with Volkswagen.