US President National Security Adviser John Bolton could visit our region by the end of August, if there would be positive indications that Pristina could revoke the tariffs, Serbian Foreign Affairs Minister Ivica Dacic told TV Happy morning broadcast, KoSSev portal reports. “In previous US administration you had official stance that Kosovo issue is resolved, that they do not want to deal with that any longer, and they transferred it to so-called staffers, State Department officials of third and fourth ranks,” Dacic said, adding that Bolton has told him Kosovo issue, respectively lasting resolution of the Kosovo issue is high on the agenda of US foreign policy priorities.