A prosecutor has reinstated the campaign finance case against Arizona Attorney General Tom Horne despite an administrative law judge's decision that there's not enough evidence to conclude he broke the law.

Judge Tammy Eigenheer ruled on April 18 and Yavapai County Attorney Sheila Polk had 30 days to accept, reject or modify Eigenheer's findings. The judge said prosecutors didn't prove Horne illegally coordinated campaign spending with an aide running an independent group during his 2010 election bid.

Polk said in a court filing Wednesday that there was enough proof to sustain her complaint.

Polk alleged that Horne and aide Kathleen Winn illegally worked together on outside ads targeting Horne's Democratic opponent before the November 2010 election.

They ordered the Republican attorney general to repay donors $400,000 and fines.