Washington hasn't seen the expected results after Yemen's president offered assurances to the U.S. ambassador that he would step down, an official said. Yemeni President Ali Abdullah Saleh has fended off sustained pressure to resign for much of the year. He's promised repeatedly to sign a political transition deal brokered by the Gulf Cooperation Council but hasn't followed through. The U.S. State Department this week confirmed that Saleh called in U.S. Ambassador to Yemen Gerald Feierstein to inform him of his decision to sign the GCC deal. Victoria Nuland, a spokeswoman for the State Department, suggested the U.S. government would believe Saleh when he actually signed the deal. Saleh informed the U.S. envoy that there was a cease-fire in place between pro-government forces and those loyal to the opposition. The independent Yemen Post said that cease-fire ended when government forces fired on protesters and opposition forces in parts Sanaa. The report added that Saleh's cease-fire lasted about 90 minutes. An unidentified member of the opposition movement told the Yemeni newspaper it was obvious Saleh had no intention of standing down.