Senator John McCain (R-Ariz.) laid the fault for Syrian President Bashar al-Assad's ability to gas his own people at the feet of former President Obama.
McCain said he spoke with President Trump and they are both very angry at the pictures of dead children and that the president is continuing to consult with military leaders on how to best react.
He said the attack is part of Barack Obama's legacy, noting that the former president did not enforce his "red line" on Bashar al-Assad using chemical weapons.
"Barack Obama had an opportunity to stop this and he took a hike, and that's a terrible legacy," McCain told Martha MacCallum.
He advised Trump to take action to prevent Assad's military from flying, whether by instruction or force.
McCain added that Trump must confront the Kremlin and demand they join the United States in suppressing Assad.
Watch the full interview above.