Astonished by his statement, Bolduan asked the lawmaker whether he believes the Russians and Bashar al-Assad more than his colleagues in the United States.
In response, Massey doubted that a chemical attack on his own people would serve the interests of the Syrian president.
From the congressman's point of view, the release of gas into the atmosphere could have happened unintentionally as a result of an airstrike on a weapons depot.
"You've got a war going on over there," Massie said. "Supposedly that airstrike was on an ammo dump, and so I don't know if it was released because there was gas stored in the ammo dump or not — that's plausible."
The Syrian opposition claimed Tuesday that forces loyal to President Bashar Assad had used a chemical gas on people in the northwestern province, killing nearly 80 and injuring 200. Assad argued that his government has no chemical weapons after having agreed to have them destroyed in 2013. He also ruled out having used chemicals against his own people.
Russian President Vladimir Putin said Thursday that the incident needed to be cleared up before making any accusations.
The Russian Defense Ministry said early Wednesday that there was an airstrike carried out by Syrian aircraft, which struck a terrorist warehouse housing chemical weapons slated for delivery to Iraq.