A U.S. official tells CNN that the U.S. is prepared to strike Syria "within hours".
That is if the president orders military action. The Obama administration laid out its case for retaliation, because they believe the Syrian government did in fact use chemical weapons against its own people.
U.S. Secretary of State John Kerry called the attack "inexcusable" and "undeniable," and said there was "a clear reason that the world has banned entirely chemical weapons."
"Anyone who could claim that an attack of this staggering scale could be contrived or fabricated needs to check their conscience and their own moral compass. What is before us today is real, and it is compelling," Kerry said.
A senior administration official tells CNN that President Obama will be presented with final options regarding actions against Syria in the next few days.
OutFront: Republican Congressman Peter King. He sits on both the House Homeland Security Committee and the House Intelligence Committee.