WASHINGTON (AP) — President Donald Trump is edging closer to declaring a national emergency to fund his long-promised border wall, as pressure mounts to find an escape hatch from the three-week impasse that has closed parts of the government, leaving hundreds of thousands of workers without pay.

Some 800,000 workers, more than half of them still on the job, were to miss their first paycheck on Friday under the stoppage, and Washington was close to setting a dubious record for the longest government shutdown in the nation's history. Those markers — along with growing effects to national parks, food inspections and the economy overall — left some Republicans on Capitol Hill increasingly uncomfortable with Trump's demands.

Asked about the plight of those going without pay, the president shifted the focus, saying he felt bad "for people that have family members that have been killed" by criminals who came over the border.

Trump visited McAllen, Texas, and the Rio Grande on Thursday to highlight what he calls a crisis of drugs and crime. He said that "if for any reason we don't get this going" — an agreement with House Democrats who have refused to approve the $5.7 billion he demands for the wall — "I will declare a national emergency."