Senate and House leaders said Tuesday they will cancel the Martin Luther King Jr. Day recess unless there is a sudden resolution to the 25-day partial government shutdown, which appears unlikely given a breakdown in high-level talks.

Senate Democratic Leader Charles Schumer Chuck SchumerMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security Warren, Schumer introduce plan for next president to cancel ,000 in student debt Schumer lashes out at Trump over 'blue states' remark: 'What a disgrace' MORE (N.Y.), one of the principal negotiators, told reporters Tuesday that he hasn’t spoken to President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE in nearly a week, underlining the standstill in negotiations.

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“The last I spoke with him was when he walked out, threw a temper tantrum and walked out, so we haven’t heard from him since then,” Schumer told reporters after meeting with the Democratic caucus.

A group of centrist House Democrats on Tuesday rejected a White House invitation to attend talks with Republicans and Trump, seeing it as an effort to divide the party.

A Democratic congressional aide said the meeting appeared to be pulled together “haphazardly at the last minute,” with invitations to members received from the White House beginning in the late afternoon on Monday and continuing until late at night.

“The congressman is declining the invitation,” said Andrew Scibetta, a spokesman for Rep. Lou Correa Jose (Lou) Luis CorreaCriminalization that never should have been: Cannabis Man arrested, charged with threatening to attack Muslims in Germany Gloves come off as Democrats fight for House seat in California MORE (D-Calif.). “Congressman Correa welcomes the opportunity to talk with the president about border security, as soon as the government is reopened.”

The White House and Republicans who did attend the meeting criticized the Democrats for skipping it.

“The sheer fact that no Democrats [were] here to even talk with us shows the lack of willingness to compromise,” said Rep. Rodney Davis Rodney Lee DavisHouse passes legislation to boost election security research House Republicans investigating California secretary of state's contract with Biden-linked firm House Democrats' campaign arm releases ads hitting 10 Republicans on health care MORE (Ill.), one of the Republicans who went to the White House.

Democrats feel confident they have leverage on Trump, who has seen his poll numbers steadily erode as the shutdown drags on.

“Every day he’s losing. The Gallup poll today had him at a near record low of 37 percent popularity. Even some of his base is losing faith,” Schumer said on the Senate floor Tuesday morning. “President Trump, you’re not going to win this fight with the American people. Every day it drags on, you are less popular.”

A Quinnipiac University poll published Monday showed that 56 percent of respondents blame Trump and Republicans in Congress for the shutdown, while only 36 percent blame Democrats.

Convinced that Trump is taking the brunt of the political fallout, Democrats feel little incentive to cede any ground in the standoff over the president’s demand for $5.7 billion for a border wall.

So far, most Republican lawmakers are sticking with Trump, persuading themselves the shutdown isn’t becoming a political disaster for their party. But others acknowledge the standoff is taking a toll on Trump’s political standing and want to see an end to the impasse.

“Nobody is winning. Mr. President, hear me, nobody is winning. We’re not winning, you’re not winning, Democrats aren’t winning,” said Sen. Lisa Murkowski Lisa Ann MurkowskiGOP ramps up attacks on Democrats over talk of nixing filibuster OVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House Democrats tee up vote on climate-focused energy bill next week MORE (R-Alaska).

Asked if the shutdown is hurting Trump’s approval rating, Murkowski said “absolutely.”

Senate Majority Whip John Thune John Randolph ThuneThe Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump contradicts CDC director on vaccine, masks Senate GOP eyes early exit MORE (R-S.D.) said Trump has largely failed to persuade independent voters that building a border wall is worth a monthlong partial government shutdown.

“The real battlefield is for those independent voters, and I don’t think he’s probably won them over yet,” Thune said.

But he added that Trump “certainly among Republican voters, from what I’ve seen, he seems to be moving the needle there.”

For the second time in two weeks, Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellMcConnell focuses on confirming judicial nominees with COVID-19 talks stalled McConnell accuses Democrats of sowing division by 'downplaying progress' on election security Warren, Schumer introduce plan for next president to cancel ,000 in student debt MORE (R-Ky.) on Tuesday blocked a request by Maryland Sens. Ben Cardin Benjamin (Ben) Louis CardinPPP application window closes after coronavirus talks deadlock Congress eyes tighter restrictions on next round of small business help Senate passes extension of application deadline for PPP small-business loans MORE (D) and Chris Van Hollen Christopher (Chris) Van HollenMid-Atlantic states sue EPA over Chesapeake Bay pollution Trump payroll-tax deferral for federal workers sparks backlash Senators urge administration to make payroll tax deferral optional for federal workers MORE (D) to take up a House package to fund shuttered departments and agencies.

McConnell has said he will not allow a vote on a funding measure unless there is a deal between Trump and Democrats. He also said the Senate would not be voting to override a Trump veto on funding legislation.

There are at least two groups of senators working on proposals that could later serve as the basis of a compromise.

One group, led by Sen. Joe Manchin Joseph (Joe) ManchinBiden promises Democratic senators help in battleground states Senate leaders quash talk of rank-and-file COVID-19 deal OVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' MORE (D-W.Va.), includes a mix of Republicans and Democrats, including Sens. Christopher Coons Christopher (Chris) Andrew CoonsBiden promises Democratic senators help in battleground states Shakespeare Theatre Company goes virtual for 'Will on the Hill...or Won't They?' 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-Del.), Cory Gardner Cory Scott GardnerAirline job cuts loom in battleground states House approves bill to secure internet-connected federal devices against cyber threats Congress needs to finalize space weather bill as solar storms pose heightened threat MORE (R-Colo.), Lindsey Graham Lindsey Olin GrahamThe Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Senate Democrats' campaign arm announces seven-figure investment to boost Graham challenger Graham: Comey to testify about FBI's Russia probe, Mueller declined invitation MORE (R-S.C.), Doug Jones (D-Ala.), Rob Portman Robert (Rob) Jones PortmanRomney undecided on authorizing subpoenas for GOP Obama-era probes Congress needs to prioritize government digital service delivery House passes B bill to boost Postal Service MORE (R-Ohio), Thom Tillis Thomas (Thom) Roland TillisAirline job cuts loom in battleground states Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Republican Senators raise concerns over Oracle-TikTok deal MORE (N.C.) and Mark Warner Mark Robert WarnerIntelligence chief says Congress will get some in-person election security briefings Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House approves bill to secure internet-connected federal devices against cyber threats MORE (D-Va.).

A separate group, made up entirely of Republican moderates, is also meeting to discuss options, according to Murkowski.

“Let’s just agree we’ve got to stop it,” she said.

“I’ve got to do something,” she added. “I just can’t sit and wait and hope that one day the president will wake up someday and say, ‘Oops, I changed my mind on that.’ That’s not going to happen.”

She said a broader immigration deal is “clearly in the mix,” as is a broader agreement on federal spending levels.

Some Republicans are floating the idea of combining negotiations over the border wall with talks over strict spending caps. Those new spending ceilings are set to be triggered in 2020. They argue Democrats might be willing to compromise if funding levels for social-service programs are also at stake.

“It’s worth positive discussions. It might be a good idea,” Senate Appropriations Committee Chairman Richard Shelby Richard Craig ShelbySenate GOP eyes early exit Dems discussing government funding bill into February GOP short of votes on Trump's controversial Fed pick MORE (R-Ala.) said. “I think we’ll have to discuss all of it, that included.”

While most Republican lawmakers are sticking with Trump for now, nerves are fraying.

Sen. Johnny Isakson Johnny IsaksonBottom line New poll shows tight presidential race in Georgia Matt Lieberman faces calls to drop out of Georgia Senate race over 'racist and discriminatory' tropes in 2018 book MORE (R-Ga.), usually one of the most gentlemanly members of the Senate, gave an angry speech on the floor Tuesday, venting his frustration with the lack of progress.

“The president is not moving. The Democrats aren’t moving. The majority leader is not moving. And we’re not doing much. And that doesn’t solve anything,” he fumed.

“The fact of the matter is we’re not doing a damned thing while the American people are suffering,” he said.

Atlanta’s Hartsfield-Jackson airport, one of the nation’s busiest, has been hit especially hard by the expiration of government funding for the Transportation Security Administration. Travelers there are waiting up to 88 minutes to make it through security screening lines — and up to 55 minutes in TSA PreCheck lines.

“We’ve got a Super Bowl coming to Atlanta, Ga., in about three weeks, the biggest tourism event in the world this year. What if the largest airport in the world goes on strike?” Isakson said.

A Senate Republican aide predicted that more Republican moderates would defect from Trump’s side.

“The polling is horrible,” the aide said, warning that the political environment could turn drastically worse for Republicans if an accident or worse happens at an airport because of low staffing levels.

Jordan Fabian, Jordain Carney and Scott Wong contributed.