After the horrific chemical weapons attack in Syria, Secretary of State Rex Tillerson said that “steps are underway” on an international coalition to pressure Syrian President Bashar al-Assad from power.

It's a sharp change from his stance last week, when he said the "longer-term status of President Assad will be decided by the Syrian people."

On "Special Report" tonight, Charles Krauthammer questioned why the Trump administration said they are not committed to regime change and then quickly changed course on that policy in an "emotional response" to the chemical attack.

"In Iraq, Saddam had conducted campaigns of sarin gas attacks, killing thousands of Kurds. And Trump has always proudly announced he was always against the war," Krauthammer said. "If this is a reason for us to go to war, then why didn't it apply in Iraq? And why didn't it apply years ago when Obama was in power?"

He said it's concerning that a world super power is radically changing its foreign policy because its leader was "moved by pictures" of the suffering in Syria.

"You've got to wonder about the stability of the foreign policy," Krauthammer said.

He added it was a "big mistake" to initially announce that we were no longer interested in removing Assad from power.

"Why did we have to say anything?" Krauthammer asked. "I think that simply invited this kind of arrogant aggression on the part of Assad."

Watch more from the "Special Report" panel above.

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