Emerging from a highly anticipated meeting with Texas Gov. Rick Perry, Obama said he was open to suggestions from Perry and others that he dispatch National Guard troops to the border, but warned such a solution would only work temporarily. He said Republicans appealing for him to embrace their ideas for addressing the crisis should grant his request so the government will have the resources to put those ideas into action.
"The problem here is not major disagreement," Obama said in Dallas. "If they're interested in solving the problem, then this can be solved. If the preference is for politics, then it won't be solved."
But on Capitol Hill, Republican opposition hardened to his $3.7 billion request, leaving any solution unclear. At the same time, the political pressures on the president appeared to grow from all sides, as Republicans denounced him on the Senate floor, and even some Democrats began to join GOP demands for him to visit the U.S.-Mexican border calls the White House continued to reject.
Obama met late Wednesday at a Dallas airport with Perry and other local leaders to discuss the immigration crisis. An Obama critic, Perry has blamed Obama's immigration policies for spurring the influx of unaccompanied youth over the border, and his calls for Obama to visit the border during his Texas trip have gone unanswered.
But Obama called the meeting "productive" and said he didn't disagree philosophically with any of Perry's suggestions. In addition to National Guard troops, Obama said Perry had requested a repositioning of border patrol agents and policy changes to make it easier to deport children from Central American countries found to have no legal basis for entering the country.
He said he was "happy to consider" the National Guard request, arguing that many of the other ideas he's hearing from Republicans are actually included in the emergency request he so direly wants Congress to approve. He called on Perry to help persuade fellow Republicans to go along.
"The only question at this point is why wouldn't the Texas delegation, or any of the other Republicans who are concerned about this, not want to put this on the fast track?" Obama said.
Yet Sen. John McCain, R-Ariz., who has supported Obama's stalled quest to remake the nation's immigration laws, said earlier he could not support the president's spending request.
"I cannot vote for a provision which will then just perpetuate an unacceptable humanitarian crisis that's taking place on our southern border," McCain said on the Senate floor, where he was joined by fellow Arizonan Jeff Flake and Texas Republicans John Cornyn and Ted Cruz. They took take turns blaming Obama's policies for causing the border situation, contending that his efforts to relax some deportations have contributed to rumors circulating in Central America that once here, migrant kids will be allowed to stay.
"Amnesty is unfolding before our very eyes," Cruz said.
In the House, Speaker John Boehner was noncommittal about bringing the spending measure to a vote.
"If we don't secure the border, nothing's going to change. And if you look at the president's request, it's all more about continuing to deal with the problem," Boehner told reporters.
Meanwhile immigration advocacy groups attacked the spending request from the left, saying it was overly focused on enforcement. A group of civil liberties organizations filed a lawsuit in Seattle against the Obama administration, arguing that the federal government is failing to provide the minors with legal representation.
The head of U.S. Customs and Border Protection, Gil Kerlikowske, told senators in Washington on Wednesday that the number of unaccompanied minors picked up since October now stands at 57,000, up from 52,000 in mid-June, and more than double what it was at the same time last year. They're coming mostly from El Salvador, Honduras and Guatemala, often fleeing gang violence.
The situation, Kerlikowske said, "is difficult and distressing on a lot of levels."
"We have not been what I would say successful yet" in ensuring that the unaccompanied kids are processed by the Border Patrol as quickly as required, said Federal Emergency Management Agency Administrator Craig Fugate as he testified alongside Kerlikowske before the Senate Homeland Security and Governmental Affairs Committee.
"The children continue to come across the border. It's a very fluid situation," Fugate said. "Although we have made progress, that progress is oftentimes disrupted when we see sudden influxes of kids coming in faster than we can discharge them, and we back up."
Juan Osuna, director of the executive office of immigration review at the Department of Justice, said that "we are facing the largest caseload that the agency has ever seen."
Osuna said that deportation cases involving families and unaccompanied children would be moved to the top of court dockets. That means lower priority cases will take even longer to wend through a system where there's a backlog of more than 360,000 pending deportation cases.
Obama's emergency spending request would add more judges, increase detention facilities, help care for the kids and pay for programs in Central America to try to keep them from coming.
McCain and other Republicans dismissed those measures as inadequate, saying the only way to stem the tide would be to deport the kids more rapidly.
"They will do nothing ... nothing that planeloads upon planeloads of children would do," said Sen. Ron Johnson, R-Wis.
The Obama administration says it wants more flexibility to turn the children around more quickly, since current law requires minors from countries other than Mexico or Canada to go through the court system in what is often a lengthy process. But immigrant advocates and some Democrats are balking at that idea, arguing that it would jeopardize the children's legal protections and put them at risk.
Associated Press writers Alicia A. Caldwell, Jim Kuhnhenn, Josh Lederman and Eric Tucker in Washington, and AP White House Correspondent Julie Pace in Dallas, contributed to this report.