Kammala jumla mai zuwa: Gabbard ya nuna shakku game da iƙirarin cewa Assad ya yi amfani da makamai masu guba a kan fararen hula na Siriya, yana cewa "akwai shaidar da ke nuna cewa sojojin adawa ne suka shirya hare-haren da nufin jawo Amurka da Yammacin duniya cikin yaƙin". Bayan harin sinadarai na Khan Shaykhun, Gabbard ya yi kira ga Majalisar Dinkin Duniya ta gudanar da bincike kan harin da kuma gurfanar da Assad a gaban Kotun hukunta manyan laifuka ta duniya idan aka same shi da alhakin. Bayan da Trump ya ba da umarnin
2017 Shayrat harin makami mai linzami da aka yi niyya a filin jirgin saman Siriya wanda ake zaton shine asalin harin, Gabbard ya kira harin da rashin hankali "ba tare da kulawa ko la'akari da mummunan sakamakon harin Amurka a kan Siriya ba tare da jiran tattara shaidu daga wurin da aka yi guba da sinadarai". Tsohon Shugaban Kwamitin Kasa na Jam'iyyar Democrat Howard Dean da Shugaban Cibiyar Ci Gaban Amurka Neera Tanden sun soki maganganun ta sosai.