PIERRE, S.D. -

A group of Republican lawmakers and others are going to court to block a government ethics overhaul just approved by voters this month.
    
Their lawsuit filed in state court Wednesday challenges the constitutionality of the ballot measure that took effect last week.
    
Foes of the measure argue that provisions including an ethics commission, public campaign funding and limitations on lobbyist gifts run afoul of the state or federal constitutions - or both.
    
Voters narrowly approved the measure after supporters billed it as an anti-corruption package that would improve transparency.
    
A supporter of the measure said he hadn't yet seen the lawsuit and couldn't comment.
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Gov. Dennis Daugaard says he supports repeal or major changes to a government ethics overhaul just approved by voters this month.
    
Daugaard told The Associated Press that backers of the measure ignored constitutional concerns raised by nonpartisan state officials. He said he'd support repeal if the measure isn't struck down in court.
    
Daugaard also said he won't include money in his budget for a public campaign finance system called for by the new law.
    
Voters narrowly approved the measure after supporters billed it as an anti-corruption package that would improve transparency. It tightens campaign finance and lobbying laws and creates an ethics commission.
    
Those supporters say it would be bad policy to ignore the will of the people.