The officials commented only on condition of anonymity because they were not authorized to describe the information publicly.
Syrian Foreign Minister Walid al-Moallem immediately embraced the plan. And then in quick succession, the U.N. chief did, too, British Prime Minister David Cameron said it was worth exploring, the French foreign ministry said it deserved close examination and former Secretary of State Hillary Rodham Clinton said any move by Syria to surrender its chemical weapons would be an "important step." Clinton, in contrast with the White House and State Department, credited Kerry and Russia jointly for the proposal.
Obama still faces a decidedly uphill fight to win congressional authorization for the use of force — and serious doubts by the American public — and Monday's developments, planned or not, could provide him with a way out of a messy political and foreign policy bind.
Yet, the White House said it does not want Congress to delay votes on use-of-force resolutions while awaiting decisions on whether to proceed with transferring Syria's chemical weapons stockpiles.
The U.S. accuses Assad's government of being behind an attack using sarin gas in a Damascus suburb on Aug. 21, killing 1,429 people. Some other estimates of the deaths are lower, but there is wide agreement that chemical weapons were used. Experts believe that the Syrian government's arsenal of chemical weapons includes nerve agents like sarin, tabun and VX as well as mustard gas.
In an interview with Charlie Rose that was broadcast Monday on "CBS This Morning," Assad denied responsibility for the Aug. 21 attack, accused the Obama administration of spreading lies without providing a "single shred of evidence," and warned that air strikes against his nation could bring retaliation. Pressed on what that might include, Assad responded, "I'm not fortune teller."