Randa did not rule the merits of the lawsuit. Griffin is fighting a decision by the state Government Accountability Board barring her from using the phrase "NOT the 'whiteman's bitch"' to describe herself on the ballot.
The judge said Griffin's claims should be brought in a civil rights lawsuit.
Griffin told The Associated Press on Thursday she intends to refile the lawsuit as a civil rights action as the judge recommended as well as appeal his order rejecting the original lawsuit based on how it was filed.
"A lot of people are telling me they support my stand," she said.
State law allows independent candidates to have five words describing themselves placed after their names on the ballot as long as it's not pejorative, profane, discriminatory or includes an obscene word or phrase.
Griffin, who is black, argued her case to the five white, retired judges on the board that regulates elections last month saying the phrase she wanted to use was protected free speech.
But the board wouldn't allow it on the ballot, which led to her filing the federal lawsuit in Milwaukee.
The Assembly district she hopes to represent covers the east side of Milwaukee and parts of Glendale. It's currently represented by Democrat Annette Polly Williams, who is retiring. Three Democrats and Griffin are seeking to replace her.