Congressional Republicans appear poised to hand President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE a stinging rebuke of his Turkey and Syria policy when lawmakers return to Washington this week.

GOP lawmakers, furious over Trump’s decision to withdraw troops to make way for a Turkish offensive against Kurdish allies, are preparing legislation that would force the administration to impose sanctions on Turkey.

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Treasury Secretary Steven Mnuchin Steven Terner MnuchinThe Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Vulnerable Democrats tell Pelosi COVID-19 compromise 'essential' MORE announced Friday that Trump would sign an executive order giving the Treasury Department “very significant” new sanctions authorities against Turkey, but it’s unclear whether the move will be enough to placate Republicans on Capitol Hill.

Sen. Marco Rubio Marco Antonio RubioGOP lawmakers distance themselves from Trump comments on transfer of power McConnell pushes back on Trump: 'There will be an orderly transition' Graham vows GOP will accept election results after Trump comments MORE (R-Fla.) called the announcement “welcome news,” while Sen. Lindsey Graham Lindsey Olin GrahamLincoln Project mocks Lindsey Graham's fundraising lag with Sarah McLachlan-themed video The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election Trump dumbfounds GOP with latest unforced error MORE (R-S.C.) said the administration needs to “up their game.”

“We are witnessing ethnic cleansing in Syria by Turkey, the destruction of a reliable ally in the Kurds, and the reemergence of ISIS,” Graham tweeted after Friday’s announcement.

“The conditional sanctions announced today will be viewed by Turkey as a tepid response and will embolden Erdogan even more,” he added, referring to Turkish President Recep Tayyip Erdoğan. “The Turkish government needs to know Congress will take a different path — passing crippling sanctions in a bipartisan fashion.”

Graham, alongside Sen. Chris Van Hollen Christopher (Chris) Van HollenCongress must finish work on popular conservation bill before time runs out Democrats fear Russia interference could spoil bid to retake Senate Mid-Atlantic states sue EPA over Chesapeake Bay pollution MORE (D-Md.), is expected to introduce harsh sanctions against Turkey this week as a punishment for its incursion into northern Syria against the Kurds, longtime allies of the U.S.

It’s not yet known whether their bill will get a floor vote; a spokesman for Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellDemocratic senator to party: 'A little message discipline wouldn't kill us' House to vote on resolution affirming peaceful transition of power Republican lawyers brush off Trump's election comments MORE (R-Ky.) said Friday he had no “updates or guidance on this right now."

But more and more Republicans are coming out in support of sanctions against Turkey, a NATO ally, as it bombs Kurds who were instrumental in the U.S.-led fight against ISIS, raising the possibility that Congress will pass veto-proof legislation rebuffing Trump’s foreign policy.

“I want to co-sponsor that resolution,” Sen. Martha McSally Martha Elizabeth McSallyOn The Trail: Making sense of this week's polling tsunami The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' MORE (R-Ariz.), who is up for reelection next year, said in an interview with Fox News. “We cannot have a supposed ally who is continuing to go in the wrong direction under Erdoğan's leadership, invading another country.”

“We got to do our part in the Senate in order to hold Turkey accountable," she added.

As lawmakers craft bills, Defense Secretary Mark Esper Mark EsperOvernight Defense: Stopgap spending measure awaits Senate vote | Trump nominates former Nunes aide for intelligence community watchdog | Trump extends ban on racial discrimination training to contractors, military Overnight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Official: Pentagon has started 'prudent planning' for full Afghanistan withdrawal by May MORE and Chairman of the Joint Chiefs of Staff Gen. Mark Milley are scheduled to brief the Senate Armed Services Committee on Syria and “the wider region” behind closed doors Thursday, according to a committee notice.

Republicans are fuming after Trump decided to withdraw U.S. troops from northeast Syria, paving the way for Erdoğan to move forward with a long-threatened offensive against Syrian Kurdish forces.

Ankara considers the Syrian Kurds terrorists connected with a Kurdish insurgency inside Turkey. But the United States partnered with the Kurds in the fight against ISIS and relied on them to do the most dangerous ground fighting.

Lawmakers in both parties have called Trump’s decision a betrayal of the Kurds and one that will send a chilling signal to any country or group that might want to ally itself with the United States in the future. They have also expressed concern that ISIS will take advantage of the chaos to escape from Kurdish-guarded prisons and regroup.

While the condemnation has been bipartisan, the Republican criticism is particularly notable since it comes at a time when the GOP is vociferously defending Trump from House Democrats’ impeachment inquiry.

But Syria has riled up Republicans like no other issue during Trump’s presidency. When the president said in December he would withdraw all U.S. troops from Syria, there was an outcry from Republicans and the Senate passed an amendment warning against the withdrawal in a veto-proof 68-23 vote. Trump eventually walked back his plan.

Amid the latest backlash, Trump has sought to distance himself from Turkey’s actions. On Thursday, he raised the possibility of playing mediator between Turkey and the Kurds, despite the fact that Trump’s retreat and Turkey’s incursion unraveled the previous U.S.-mediated plan for a safe zone.

“We can mediate. I hope we can mediate,” Trump told reporters at the White House.

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His administration has also sought to change the narrative. A senior State Department official told reporters on a background call this past week that “we gave them a very clear red light,” while Esper told reporters Friday that “nobody greenlighted this operation” and insisted that “we have not abandoned the Kurds.”

While Trump approved expanding the Treasury Department’s authority to slap sanctions on Turkey, he declined later in the day Friday to specify what would prompt him to follow through with the sanctions threat.

Congress may not give him any choice.

Syria-related legislation was not included in guidance from McConnell's office about what will be taken up on the Senate floor this week. But Van Hollen has said he and Graham plan to introduce their bill as soon as Congress returns from recess and will push for an “immediate vote.”

The Graham-Van Hollen bill would sanction any U.S. assets of high-ranking Turkish officials, including Erdoğan, until the Trump administration certifies to Congress that Turkey has withdrawn from Syria. It would also place visa restrictions on Turkish leaders, sanction any foreign person supporting the Turkish military and ensure the previously congressionally mandated sanctions for Turkey’s purchase of a Russian missile defense system go into effect.

During an interview this past week with home-state radio station KBOI, Senate Foreign Relations Committee Chairman Jim Risch James (Jim) Elroy RischWhy the US should rely more on strategy, not sanctions Davis: The Hall of Shame for GOP senators who remain silent on Donald Trump Senators blast Turkey's move to convert Hagia Sophia back into a mosque MORE (R-Idaho) said there is “a growing feeling in the Congress that we ought to” sanction Turkey.

"The most important question I think on the table right now is ... do we take a move against Turkey based on economic sanctions,” Risch said.

Risch has not said whether he will support the Graham-Van Hollen bill, and a spokesman told The Hill on Friday he did not have an update on Risch’s stance.

Sen. Susan Collins Susan Margaret CollinsDemocratic senator to party: 'A little message discipline wouldn't kill us' Poll: 57 percent of Americans think next president, Senate should fill Ginsburg vacancy On The Trail: Making sense of this week's polling tsunami MORE (R-Maine), who is up for reelection next year, told reporters in Maine she supports sanctions against Turkey.

“I think sanctions are a good idea,” she said. “I worry whether they will be effective at this point in stopping the Turks from the slaughter of our allies. I vehemently disagree with the president’s decision."

Rep. Liz Cheney Elizabeth (Liz) Lynn CheneyGOP lawmakers distance themselves from Trump comments on transfer of power Graham vows GOP will accept election results after Trump comments Liz Cheney promises peaceful transfer of power: 'Fundamental to the survival of our Republic' MORE (Wyo.), the No. 3 House Republican, has unveiled a companion measure to the Graham-Van Hollen bill in the House. Her bill is co-sponsored by nearly 30 Republicans, including House Minority Leader Kevin McCarthy Kevin Owen McCarthyHouse to vote on resolution affirming peaceful transition of power Ginsburg becomes the first woman to lie in state in the Capitol McCarthy says there will be a peaceful transition if Biden wins MORE (Calif.), House Minority Whip Steve Scalise Stephen (Steve) Joseph ScaliseGinsburg becomes the first woman to lie in state in the Capitol House GOP slated to unveil agenda ahead of election House panel details 'serious' concerns around Florida, Georgia, Texas, Wisconsin elections MORE (La.) and House Armed Services Committee ranking member Mac Thornberry William (Mac) McClellan ThornberryOvernight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds Democrats push to limit transfer of military-grade gear to police Trump payroll-tax deferral for federal workers sparks backlash MORE (R-Texas).

“President Erdogan and his regime must face serious consequences for mercilessly attacking our Kurdish allies in northern Syria, who incurred thousands of casualties in the fight against ISIS and helped us protect the homeland,” Cheney, who is weighing a 2020 Senate bid, said in a statement announcing her bill. “If Turkey wants to be treated like an ally, it must begin behaving like one. They must be sanctioned for their attacks on our Kurdish allies."

House Foreign Affairs Committee Chairman Eliot Engel Eliot Lance EngelHouse panel halts contempt proceedings against Pompeo after documents turned over Engel subpoenas US global media chief Michael Pack The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep MORE (D-N.Y.) and the panel's top Republican, Rep. Michael McCaul Michael Thomas McCaulHouse passes legislation to crack down on business with companies that utilize China's forced labor House Republicans blame Chinese cover-up for coronavirus pandemic Engel subpoenas US global media chief Michael Pack MORE (Texas), also released a sanctions bill Friday that targets Turkish leaders involved in the Syria operation, as well as banks involved in Turkey's defense sector. The measure would also prohibit arms sales to Turkey and sanction Ankara over its purchase of the Russian missile defense system.

The sanctions would apply until Trump certifies to Congress that Turkey has halted its Syria offensive.

A separate bipartisan resolution released by Engel on Friday includes language saying the Kurds "fought courageously" with the United States against ISIS and that a withdrawal from northeast Syria is "beneficial to adversaries" like Syria, Iran and Russia.

The four-page resolution says the House "opposes the decision to end certain United States efforts" to prevent Turkey's offensive. It also calls on Erdoğan to "immediately cease" the operation, says the United States should continue supporting the Kurds and calls for the U.S. to "work to ensure that the Turkish military acts with restraint."

In a letter to House Democrats on Friday, Hoyer said it is possible the chamber will take up Syria legislation during this work period.

“Both parties are outraged by the president’s reckless and dangerous decision to withdraw U.S. troops from northern Syria and abandon our Kurdish allies,” Hoyer wrote. “It is shameful that this president has betrayed a reliable ally, is enabling the return of ISIS and is putting our nation and other allies, including Europe and Israel, at risk. As Turkish forces push deeper into Syria and the Kurdish death toll rises, Congress ought to respond.”

Jordain Carney and Scott Wong contributed.