Colorado Springs anti-tax activist Douglas Bruce was cited for contempt of court Wednesday after a Denver judge found cause to believe that Bruce disobeyed a court order and obstructed justice.

A hearing in the contempt case is set for July 26 in Denver. Bruce could be ordered to pay fines and court costs for not appearing at a campaign finance proceeding before an administrative court last month.

A judge determined last week that Bruce was properly served with an order for his appearance at the hearing to determine who is behind three measures on the November ballot.

In May, an administrative law judge found that Bruce was tied to efforts get Amendment 60, Amendment 61, and Proposition 101 on the ballot. The measures would limit government borrowing, taxes and fees.

The state tried 30 times to serve Bruce with the court order in May, but couldn’t track him down. Bruce said he was traveling for much of the month and won’t say whether he avoided being served.

A judge found that Bruce should have known about the hearing because he was notified of the order by mail and e-mail, among other means.

“Based on the state’s showing in the motion, there is cause to believe that Mr. Bruce has not complied with the order and that, to date, he remains in disobedience of the order,” Denver District Court Judge Brian Whitney wrote in papers ordering the contempt citation.

Bruce said he’ll fight the contempt case.

“I did nothing wrong,” he said Wednesday.