"I strongly support President Trump’s decision to initiate executive order sanctions against Turkish officials and economy for Turkey’s invasion of northeastern Syria. Turkey is attacking the Kurdish forces that supported us the most in destroying the ISIS Caliphate," Graham, one of the most vociferous opponents of Trump's recent move to pull U.S. troops out of northern Syria, said in a statement.

Graham's comments came after he spoke with Trump and took part in calls with the president, administration officials and "key leaders in this conflict."

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Graham added that his colleagues should publicly push back against Turkey's invasion of northern Syria and back Trump's sanctions plan, which the president announced earlier Monday

"The President’s team has a plan and I intend to support them as strongly as possible, and to give them reasonable time and space to achieve our mutual goals," he continued.