Two major petitions have been filed challenging the court's ruling.

A number of lawsuits have been filed challenging the legality of these programs.

Several lawsuits have been filed in Federal court challenging the city's plans as an abridgment of free speech.

So far, five lawsuits have been filed challenging the Parks Department's renovation plans.

Several lawsuits have been filed challenging the ban on exports.

Several lawsuits had been filed challenging the proposal, the company said.

Other suits have been filed challenging the project's impact on traffic and air quality.

The status of a grievance filed by the players union against the Cowboys challenging Carter's release was uncertain.

Two days later, President Barco again signed it into effect, but new suits were immediately filed challenging its constitutionality.

A court case has been filed challenging the timelines and this has put on hold the migration.