US Secretary of State Rex Tillerson responds to a journalist's question about the pace of hiring at the State Department while posing for photes with Togo's Foreign Minister Robert Dussey in the Treaty Room at the State Department on June 29, 2017 in Washington, DC. / AFP PHOTO / MANDEL NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)

Secretary of State Rex Tillerson is expressing growing frustration with the Trump administration and may be considering resigning from his role, according to a report from CNN Monday morning.
Though the former CEO of ExxonMobil Corp. has said that he would stay on as the top U.S. diplomat until the end of the year at least, several anonymous sources told CNN over the weekend that he might leave earlier than that. 
Sources “familiar with Tillerson conversations with friends outside Washington” admit the secretary of State may just be venting, but they sense his doubts about President Trump are growing.
Tillerson reportedly agreed with Trump critics who thought it was unprofessional when the president lashed out last week at Attorney General Jeff Sessions Jeff Sessions AT&T discussing merger conditions with DOJ: report Trump rolls eyes at question about Sessions GOP Senate candidate uses Scalise shooting in ad MORE because he recused himself from the investigation into Russian meddling in …