The mood inside White House Chief of Staff Reince Priebus' office was dark on Friday, as Secretary of State Rex Tillerson unloaded on Johnny DeStefano, the head of the presidential personnel office, over a range of issues, four people familiar with the clash told Politico. Tillerson lost it after months of having his proposed nominees for State Department posts passed over by DeStefano's office, a person with knowledge of the situation told Politico, and "expressed frustration that anybody would know better" than he would over who should be hired.