The phrase "gubernatorial vetoes" refers to the power of a governor to reject or block a bill passed by the legislature. It means that the governor can prevent a proposed law from being enacted by refusing to sign it. Full definition
The rules for legislative overrides of gubernatorial vetoes in New Hampshire are listed below. (ballotpedia.org)
The rules for legislative overrides of gubernatorial vetoes in New Jersey are listed below. (ballotpedia.org)
A spokesman for Gov. Andrew Cuomo slapped back hard at Sen. John DeFrancisco in a statement after the Syracuse Republican said he would be supportive of overriding a potential gubernatorial veto of procurement reform bill. (nystateofpolitics.com)