The fight to "occupy" downtown Dallas is expected to go before a federal judge Friday morning.
Occupy Dallas filed a federal injunction on Wednesday afternoon to get a permit to stay on Pioneer Plaza indefinitely.
"I don't have any concern about what will happen in the next couple of days," Occupy Dallas attorney Cameron Gray said. "We're working together, trying to resolve issues."
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Protesters with Occupy Dallas have been staying in Pioneer Plaza for nearly a week while demonstrating against the banking industry and Wall Street.
Demonstrators have set up tents, including some set up for day care, food and medicine. About 100 to 200 people were staying at Pioneer Plaza as of Tuesday.
The city revoked its permit to the group Tuesday and said it would begin enforcing local ordinances such as park curfews and prohibitions on sleeping in public.
No arrests have been made so far.
But Occupy Dallas lawyers said demonstrators should be allowed to stay on the plaza because the part of the park they are in does not require a permit to stay overnight.
"We'll stay out here until we get something done, something happens," Ben Wadell said.
Organizers said the rain early Wednesday morning forced some people away, but they expect demonstrators to return.
"We're working on rebuilding, improving infrastructure and ensuring safety, security, of everyone out here," organizer Michael Prestonise said.
Dallas pulled the group's permit Tuesday night because it did not obtain a $1 million insurance policy.
"The city had an agreement with Occupy Dallas to remain on the public property provided standard insurance coverage was obtained," city spokesman Frank Librio said in a statement. "The group did not meet the insurance requirements per the agreement. Therefore, the agreement is no longer applicable."
The city did not return calls for comment Wednesday.