Rep. Adam Kinzinger Adam Daniel KinzingerFox News reporter defends confirming Atlantic piece despite Trump backlash: 'I feel very confident' GOP lawmaker defends Fox reporter after Trump calls for her firing Lindsey Graham: 'QAnon is bats--- crazy' MORE (R-Ill.) on Wednesday dismissed President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's claim that the U.S. has defeated ISIS in Syria after reports surfaced that troops would be withdrawn from the region.

"This is simply not true," Kinzinger, who previously served in the Air Force in Iraq and Afghanistan, tweeted, quoting a separate message Trump posted earlier Wednesday morning claiming victory over the terrorist group.

This is simply not true. https://t.co/Jvie2NxgWz — Adam Kinzinger (@RepKinzinger) December 19, 2018

The Wall Street Journal and The Washington Post reported Wednesday that Trump is planning to "immediately" remove 2,000 troops from northern Syria fighting the Islamic State in Iraq and Syria.

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White House press secretary Sarah Huckabee Sanders later issued a statement confirming that the U.S. has begun returning troops.

“Five years ago, ISIS was a very powerful and dangerous force in the Middle East, and now the United States has defeated the territorial caliphate. These victories over ISIS in Syria do not signal the end of the Global Coalition or its campaign," Sanders said. "We have started returning United States troops home as we transition to the next phase of this campaign."

GOP Sen. Lindsey Graham Lindsey Olin GrahamSenate GOP aims to confirm Trump court pick by Oct. 29: report The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Senate GOP sees early Supreme Court vote as political booster shot MORE (S.C.) promptly voiced criticism of the the decision, saying that it would be an "Obama-like mistake" to withdraw troops.

"If these media reports are true, it will be an Obama-like mistake made by the Trump Administration. While American patience in confronting radical Islam may wane, the radical Islamists’ passion to kill Americans and our allies never wavers," Graham, a member of the Senate Armed Forces Committee, said in a statement.

Fellow GOP Sen. Rand Paul Randal (Rand) Howard PaulRand Paul says he can't judge 'guilt or innocence' in Breonna Taylor case Overnight Health Care: Health officials tell public to trust in science | Despair at CDC under Trump influence | A new vaccine phase 3 trial starts Health officials tell public to trust in science MORE (Ky.), however, praised Trump's move on Twitter: