DETROIT -

Detroit mayoral write-in candidate Mike Duggan is facing another hurdle in his campaign.

Fellow candidate Tom Barrow isn’t finished with his legal challenges against Duggan.

Barrow contends that a court ruling removing Duggan’s name from the August primary ballot also forbids him from running as a write-in candidate.

READ: Duggan running for Detroit mayor on write-in campaign

“He is ineligible to participate in this election, in this primary at all,” Barrow said.

Barrow is telling Detroit City Clerk Janice Winfrey that he’ll ask the court to find her in contempt if she allows Duggan to run as a write-in candidate.

Former Detroit City Council member Sheila Cockrel says Barrow’s legal tactics are troubling.

“It would really be good for the process if he focused on his message and not be so engaged in attempting to limit people’s democratic options to select someone for mayor,” she said. “It’s really quite troubling.”

The Duggan campaign said they don’t think Barrow’s latest challenge will get anywhere.

Write-in campaigns are rarely successful. But if Duggan could manage to finish second, he would be on the ballot in November.

Duggan has until July 26 to file as a write-in candidate.

What happened

Two courts have said Duggan doesn't qualify for the ballot because he submitted petitions less than a year after becoming a registered voter in the city, a violation of the Detroit City Charter. He moved to Detroit from Livonia, a suburb, in 2012.

A three-member panel of the state Court of Appeals upheld a lower court ruling that removed him from the ballot.

Duggan submitted petitions on April 2, 10 days short of the anniversary of his voter registration.

Duggan actually had even more time to submit petitions because the deadline to sign up for mayoral primary was May 14.