“I’m not aware of any doubt that exists,” White House Press Secretary
Assad's government has the rocket capability employed in the attack, Carney said. The Syrian government used chemical weapons earlier in the
"We see no evidence of any alternative scenario," Carney said.
Syrian officials deny any use of chemical weapons in the war and blame elements off the opposition fighting to overthrow Assad.
Obama's top spokesman insisted the president has not yet made a decision about how to respond to last week's attack, which rebels say killed hundreds of people.
Obama continued his round of phone calls to world leaders, speaking to Canadian Prime Minister
Vice President Joseph Biden and Defense Secretary
U.S. forces are ready to strike if Obama gives the order, Hagel told the
Carney declined to explain what the president meant when he said last week that an attack by one country on another without a
But he suggested that the other criteria the president stated in an interview last week with CNN – "clear evidence that can be presented" – has practically been met.
"The intelligence community is working on an assessment, and we will have conclusions that can be provided to the public available this week," Carney said. "But I think it's important to note that it is clear already that chemical weapons were used on a large scale, undeniable, and that the Assad regime is the only possible force that could have deployed them."
"There has to be a response to that clear violation of international norms," he said.