Kalshi isn’t having a very good week. On Tuesday, the attorney general of Arizona filed a 20-count criminal complaint against the online prediction market, accusing it of running an illegal gambling business. Now, another southwestern state has taken a big swing at the company: A judge in Nevada has temporarily banned the service from operating there as part of an ongoing court case brought by state regulators. Nevada, on behalf of its Gaming Control Board, sued Kalshi in February in an effort to block the prediction site from operating. Officials maintain that Kalshi has failed to acquire the appropriate gaming licenses that would cover the kind of betting activity its users are engaged in and that, by allowing users under the age of 21 to use its services, it violates state law. Earlier this month, the state requested a temporary restraining order against Kalshi as part of its ongoing case. In a state court on Friday, Judge Jason D.…