Gabbard expressed skepticism regarding claims that Assad used chemical weapons against Syrian civilians, saying that "there is evidence to suggest that the attacks may have been staged by opposition forces for the purpose of drawing the United States and the West deeper into the war." Following the Khan Shaykhun chemical attack, Gabbard called for a U.N. investigation into the attack and prosecution of Assad by the International Criminal Court should he be found responsible. After Trump ordered the 2017 Shayrat missile strike targeting the Syrian airfield believed to be the source of the attack, Gabbard called the strike reckless "without care or consideration of the dire consequences of the United States attack on Syria without waiting for the collection of evidence from the scene of the chemical poisoning." Her statements were sharply criticized both by former Democratic National Committee Chairman Howard Dean and Center for American Progress President Neera Tanden.