Therefore , the nine caucus sites located in casinos in Las Vegas were allowed to operate .
After a court hearing , Judge James Mahan of the U.S District Court for Nevada ruled that the caucus locations were fair and valid and disagreed with the group 's argument .
The nine caucus sites located in casinos in Las Vegas were allowed to operate .
After a court hearing , Judge James Mahan of the U.S District Court for Nevada ruled that the caucus locations were fair and valid and disagreed with the group 's argument .