WASHINGTON — Shifting strategy, the White House invited rank-and-file House Democrats to lunch Tuesday with President Donald Trump, bypassing Speaker Nancy Pelosi and her leadership team in an effort to get centrist and freshman lawmakers on board with funding Trump’s long-promised U.S.-Mexico border wall.

Pelosi approved of lawmakers attending the meeting, telling her team that the group can see what she and others have been dealing with in trying to negotiate with Trump to end the partial government shutdown, now in its 25th day with no resolution in sight.

Pelosi predicted that after meeting with Trump the lawmakers will want to make a “citizen’s arrest,” according to the aide, who wasn’t authorized to publicly discuss the meeting and spoke on condition of anonymity.

Lawmakers invited to the White House include centrist Democrats from districts where Trump is popular, including freshmen.

Rep. Jim Cooper, D-Tenn., said he attended a meeting of fellow centrist Democrats on Monday night and that a handful of members, most of whom represent districts Trump carried in 2016, were invited.

The White House has not released a guest list.

Rep. Jim Himes of Connecticut, another centrist Democrat, said the White House is “grasping at straws.”

“The majority of Americans understand exactly what is happening here,” he said. “The president could open the government tomorrow and he refuses to. We’re very conscious of the fact that this is a bully and when you allow him to succeed by holding the government hostage you can expect to see that play run again.”

Senate Majority Leader Mitch McConnell said on the Senate floor that it’s up to Democrats to get the country off the “political carousel” of the shutdown fight. The Kentucky Republican said Democrats have turned Trump’s wall into “something evil” and have engaged in “acrobatic contortions” to avoid dealing with the security and humanitarian crisis at the southern border.

With the government shutdown now in its fourth week, negations between the White House and Congress are at a standstill. Trump has demanded $5.7 billion for the border wall; Democrats are refusing but are offering money for fencing and other border security measures.

On Monday, Trump rejected a short-term legislative fix and dug in for more combat, declaring he would “never ever back down.” The president also edged further away from the idea of trying to declare a national emergency to circumvent Congress.

“I’m not looking to call a national emergency,” Trump said Monday. “This is so simple we shouldn’t have to.”

Trump’s rejection of the short-term option proposed by Republican Sen. Lindsey Graham removed one path forward, and little else was in sight. Congressional Republicans were watching Trump for a signal for how to move next, and Democrats have not budged from their refusal to fund the wall and their demand that he reopen government before border talks resume.

In addition to the White House outreach to centrist House Democrats, about a dozen senators from both parties met Monday to discuss ways out of the shutdown gridlock. Participants included Graham and Sens. Susan Collins, R-Maine, Joe Manchin, D-W.Va., and Tim Kaine, D-Va.

Sen. John Cornyn, R-Texas, McConnell was aware of the group’s effort but added, “I wouldn’t go so far as to say he’s blessed it.” The odds of the group producing a solution without Trump’s approval seemed slim.

Meanwhile, the effects of the 25-day partial government closure were intensifying around the country.

Some 800,000 federal workers missed paychecks Friday, deepening anxieties about mortgage payments and unpaid bills, and about half of them were off the job, cutting off some services. Travellers at the Atlanta airport, the nation’s busiest, dealt with waits of more than an hour Monday as no-shows by security screeners soared.

Trump spent the weekend in the White House reaching out to aides and lawmakers and tweeting aggressively about Democratic foes as he tried to make the case that the wall was needed on both security and humanitarian grounds. He stressed that argument repeatedly during a speech at a farming convention in New Orleans on Monday, insisting there was “no substitute” for a wall or a barrier along the southern border.

Trump has continued to insist he has the power to sign an emergency declaration to deal with what he says is a crisis of drug smuggling and trafficking of women and children at the border. But he now appears to be in no rush to make such a declaration.

Instead, he is focused on pushing Democrats to return to the negotiating table — though he walked out of the most recent talks last week.

White House officials cautioned that an emergency order remains on the table. Many inside and outside the White House hold that it may be the best option to end the budget standoff, reopening the government while allowing Trump to tell his base supporters he didn’t cave on the wall.

However, some GOP lawmakers — as well as White House aides — have counselled against it, concerned that an emergency declaration would immediately be challenged in court. Others have raised concerns about re-routing money from other projects, including money Congress approved for disaster aid. Lawmakers on both sides of the aisle have also warned that acting under an emergency order would set a troubling precedent for executive power.

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For AP’s complete coverage of the U.S. government shutdown: https://apnews.com/GovernmentShutdown

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Associated Press writers Darlene Superville, Matthew Daly, Jonathan Lemire, Alan Fram and Lisa Mascaro contributed to this report.

Catherine Lucey And Jill Colvin, The Associated Press