Between all that were shipped to Syria, all that were blown up by US, and others that we did find, there is no doubt that there were WMD’s.
Check it out:

Top-ranking lawmakers on both sides of the aisle declared Thursday that the “red line” in Syria has been crossed, calling for “strong” U.S. and international intervention after administration officials revealed the intelligence community believes chemical weapons were used.

Sen. John McCain, R-Ariz., and Sen. Dianne Feinstein, D-Calif., chairwoman of the Senate intelligence committee, were among those urging swift action.

McCain, who has long called for more involvement in Syria, voiced concern that the administration would use “caveats” to avoid acting on the new intelligence. He said America’s enemies are paying “close attention” to whether the U.S. follows through, as the White House signaled it wanted to see more proof before responding to the new information.

“I worry that the president and the administration will use these caveats as an excuse not to act right away or act at all,” McCain told Fox News. “The president clearly stated that it was a red line and that it couldn’t be crossed without the United States taking vigorous action.”