UPDATE 10:45 a.m. EST:
Sen. Lindsey Graham (R-SC) argued on NBC's "Meet the Press" that the U.S. should send more military troops into Syria, adding that President Trump had the authority to do so.
During the same show, U.S. Ambassador to the United Nations Nikki Haley said the administration had "dual priorities" of defeating ISIS and ousting Syrian leader Bashar al-Assad.
Graham didn't exactly mince words.
ORIGINAL STORY: Secretary of State Rex Tillerson said on ABC's "This Week" Sunday that the missile strikes on a Syrian air base represented "no change to our military posture" in the region.
President Trump had previously insisted there was "no upside and tremendous downside" to former President Obama getting militarily involved in the civil war in Syria. However, the deadly chemical weapon attack on Tuesday prompted Trump to launch strikes on a Syrian government air base.
Here's part of Tillerson's interview.
Tillerson said the U.S. had to learn from the past involvement in Libya.
He also said the "real failure" was Russia's failure to curb Syria's chemical weapons use.
Tillerson is set to visit Russia this week. Russia's deputy ambassador to the United Nations, Vladimir Safronkov, condemned the U.S.'s missile strikes and warned the consequences for them "could be extremely serious," Al-Jazeera reported.
During the same show, Sen. Marco Rubio (R-FL) criticized Tillerson's stance, saying that defeating ISIS and leaving Bashar al-Assad in power would only cause a new radical terrorist organization to fill the void.
WATCH | Tillerson's message stood at odds with U.N. envoy Nikki Haley, who told CNN on Saturday there was no diplomatic solution possible with Assad in power.
Tillerson also said he did not discuss payment for Trump's planned border wall with Mexico.
Rubio insisted that Mexico would not pay for the wall and the U.S. should do so if it was deemed strategically necessary.