President Donald Trump speaks in the Rose Garden of the White House in Washington, after a meeting with Congressional leaders on border security, as the government shutdown continues Friday, Jan. 4, 2019, as Homeland Security Secretary Kirstjen Nielsen, Vice President Mike Pence, House Minority Whip Steve Scalise of La., and House Minority Leader Kevin McCarthy of Calif., listen. (AP Photo/Manuel Balce Ceneta)
President Donald Trump speaks in the Rose Garden of the White House in Washington, after a meeting with Congressional leaders on border security, as the government shutdown continues Friday, Jan. 4, 2019, as Homeland Security Secretary Kirstjen Nielsen, Vice President Mike Pence, House Minority Whip Steve Scalise of La., and House Minority Leader Kevin McCarthy of Calif., listen. (AP Photo/Manuel Balce Ceneta) Credit: ap photograph

Washington — President Donald Trump warned on Friday that the partial government shutdown could go on for months or even years, delivering no real breakthrough with congressional leaders as his own administration scrambled to shore up support among Republicans for a gambit that has started to fracture.

In a rambling, hourlong news conference in the Rose Garden that followed a meeting with senior lawmakers, Trump asserted that he had the power to declare a national emergency to build the wall without Congress — a move that almost certainly would be challenged in the courts. At the same time, he insisted the government would stay shuttered while the wall impasse continues, claiming without offering evidence that previous presidents have told him they wished they had built a wall themselves.

Trump seemed to display little empathy for the 800,000 federal employees who have been furloughed or are working without being paid, saying that most workers support the shutdown and that the “safety net is going to be having a strong border because we’re going to be safe.” For workers who won’t be able to pay their rent, Trump suggested that landlords would “work with” them and that he would encourage them to “be nice and easy” on their tenants.

“This is national security we’re talking about. We’re not talking about games,” Trump said, flanked by Vice President Mike Pence, the top two House Republican leaders and Homeland Security Secretary Kirstjen Nielsen. “This should’ve been done by all of the presidents that preceded me.”

He also appeared to hold out the possibility that the shutdown would not end: “We’ll see what happens. It may get solved, it may not get solved,” the president said.

The chaotic news conference on Friday — combined with the meeting with congressional leaders in the White House Situation Room that preceded it — underscored how few substantive developments have occurred since the shutdown began two weeks ago. Congress is adjourned until Tuesday, making Wednesday the earliest the government can reopen barring a major turnaround in the current standoff between the administration and congressional Democrats.

At that point, the partial closure will have lasted 18 days — making it the second-longest federal shutdown in recent history.

Real-life consequences of the shutdown already are beginning to seep in. In one example on Friday, union leaders said hundreds of Transportation Safety Administration workers at major airports nationwide are off the job because they can’t afford to get to work, although a TSA spokesman said the absences aren’t enough to affect airport security operations. Millions of Americans also face delayed tax refunds and cuts to food stamps if the standoff drags into February.

Some congressional Republicans have started to fret about the impact of the impasse, which hinges on Trump’s insistence on more than $5 billion in federal money toward a border wall that he repeatedly said would be funded by Mexico. No such funding has materialized.

Pence called about a half-dozen House Republicans late Thursday to urge them to vote against measures that would reopen the government without new wall funding. White House officials were worried that a wave of GOP defections could give the Democratic effort bipartisan backing.

Two GOP officials confirmed the last-minute calls, speaking on the condition of anonymity to divulge the private communications.

Ultimately, just five House GOP lawmakers voted with Democrats on a spending bill that would operate the Department of Homeland Security until Feb. 8, and seven Republicans supported separate legislation that would reopen the rest of the federal government through Sept. 30. GOP officials feared the defections could have been much higher had the administration not gotten directly involved.

Pence’s outreach centered on moderate members and those who hail from the Northeast, making a pitch that centered on two main points: The country needs funding for a wall, and Congress should not punt to February, when the stopgap DHS funding would have expired under the Democratic strategy.

The vice president also pointed to language in the funding bill passed late Thursday that would reverse the so-called Mexico City policy, which denies U.S. assistance to foreign groups that offer or promote abortions.

Even so, some influential Republicans have struggled to stay aligned behind Trump in the face of the shutdown.

Sen. Cory Gardner, R-Colo., who is up for re-election in November 2020 in a state that Democratic nominee Hillary Clinton won in 2016, has called on Congress to pass spending bills to reopen the government even if they don’t contain Trump’s desired level of border wall money. Sen. Susan Collins, R-Maine, a moderate also on the ballot next year in a blue state, also has argued that legislation to fund other parts of the government shouldn’t be held hostage to disputes over the wall.

“Federal workers don’t deserve this,” Sen. Pat Roberts, R-Kan., said on Friday in Manhattan, Kan., during a news conference in which he announced his retirement from the Senate.

Trump said he had formed a Pence-led working group that would be meeting with Hill staff over the weekend to come up with a solution to the impasse. That session will occur at 11 a.m. at the White House, according to a congressional official. But one Democratic official familiar with Friday’s congressional leadership meeting said the phrase “working group” was not mentioned during it, and that staff discussions were expected to continue as before.

House Speaker Nancy Pelosi, D-Calif., and Senate Minority Leader Charles Schumer, D-N.Y., said the meeting with Trump had been contentious, although Trump later called it productive.