"Chlorine itself historically has not been listed as a chemical weapon."

Apparently, this scene from the Second Battle of Ypres does not show any chemical weapons in use.

Weapons grade stupidity on display here from the Smartest President Ever.

Are you freakin' kidding me?

Someone needs to tell the Smartest President Ever to go read a book about WWI. German soldiers used 150 tons of deadly chlorine gas in The Second Battle of Ypres. I mean, not only is chlorine gas a chemical weapon, it was the first chemical weapon.