A Maricopa County judge denied Attorney General Tom Horne’s request to bar the Citizens Clean Elections Commission from investigating a campaign finance complaint against him.

A Maricopa County Superior Court judge heard arguments in a case that will not only determine whether the Citizens Clean Elections Commission can investigate Attorney General Tom Horne, but whether it will be able to investigate any candidates who aren’t part of Arizona’s public campaign funding system.

The Citizens Clean Elections Commission voted today to continue defending a lawsuit brought by Attorney General Tom Horne to stop an investigation against him.