Former Attorney General Terry Goddard launched an effort to prohibit the use of dark money in political campaigns.

The proposed constitutional amendment, called The Voters Right to Know Act, seeks to require anyone spending at least $5,000 to influence the outcome of an Arizona election to disclose the original source of the money.

The disclosure requirement would apply to both state and local elections in Arizona.

In order for the proposal to appear on the ballot in the 2020 general election, the campaign committee behind the citizen initiative will need close to half a million signatures.

Last year, the same campaign committee missed qualification for the ballot by just over 2,000 signatures.

The amendment would require the Citizens Clean Elections Commission to enforce the new campaign finance disclosure rules and exempt the commission’s anti-dark money rules from oversight by the Governor’s Regulatory Review Council.

The proposal coincides with current Attorney General Mark Brnovich investigating whether Tempe’s ordinance banning dark money violates a law passed last year banning cities from enacting their own dark money disclosure regulations.

Arizona Attorney General Mark Brnovich will soon rule on whether cities can impose restrictions on dark money in local campaigns.

Sen. Vince Leach alleged Tempe violated a state law prohibiting local governments from requiring tax-exempt organizations from registering as political committees in 2017 by passing a voter approved ordinance banning dark money contributions.

The law allowing a legislator to demand an attorney general to investigate complaints applies only to ordinances, regulations or other official action adopted or taken by the governing board of a county, city or town.

It is unclear if the authority extends to this voter-approved measure referred to the ballot by Tempe City Council.

Tempe’s dark money ordinance was signed by Gov. Doug Ducey in 2017, as constitutionally required, but he noted it may soon be superseded by state law.

The ordinance in question requires any group spending more than $1,000 during an election cycle to disclose the original source of contributions.

The Office of the Attorney General has 30 days to decide if the complaint has merit.