In litigation filed at 1 a.m. Thursday, a group of conservative Republicans has asked a court to step in and undo the cancellation of the Texas Republican Convention in Houston.

The in-person political convention was set to take place July 16-18 in Houston’s George R. Brown Convention Center, but the entity that operates the center told the Texas Republican Party late Wednesday afternoon that it was canceling its contract because of a force majeure event, according to the petition in Hotze v. Turner, filed in Harris County district court.