(Reuters) -Two federal judges admitted in response to an inquiry by U.S. Senate Judiciary Committee Chairman Chuck Grassley that members of their staff used artificial intelligence to help prepare recent court orders that Grassley called "error-ridden." In letters released by Grassley's office on Thursday, U.S. District Judge Henry Wingate in Mississippi and U.S. District Judge Julien Xavier Neals in New Jersey said the decisions in the unrelated cases did not go through their chambers' typical review processes before they were issued.