National Border Patrol Council Vice President Art Del Cueto challenged Democrats critical of President Donald Trump's threat to close the southern border to travel there themselves and talk to agents on the ground.

On “America’s Newsroom” Tuesday, Cueto acknowledged the president’s threat to close the border is “an extreme measure” but said it is one of the best options.

“We support whatever the president’s able to do and at this point when you have a country that’s facilitating these individuals to come through, what else do you have as an option?” Cueto asked.

He added, “Because of what we’re seeing and the emergency and the overrunning in our facilities and the agents being removed from certain law enforcement positions so they can do processing and take care of these overcrowded cells, that seems to be one of the best options right now.”

Last week, Trump said he would close the border if Mexico does not “immediately stop” the surge. The administration has also threatened to cut direct aid to El Salvador, Honduras and Guatemala -- the home of many of the recent migrants.

Last week U.S. Customs and Border Protection Commissioner Kevin McAleenan said that the border was at its “breaking point,” and there are not enough agents to respond to the flow of illegal immigrants crossing the U.S.-Mexico border.

“That breaking point has arrived this week at our border,” McAleenan said during a visit to the border in El Paso, Texas. “CBP is facing an unprecedented humanitarian and border security crisis all along our Southwest border.”

Trump tweeted Tuesday, “After many years (decades), Mexico is apprehending large numbers of people at their Southern Border, mostly from Guatemala, Honduras and El Salvador. They have ALL been taking U.S. money for years, and doing ABSOLUTELY NOTHING for us, just like the Democrats in Congress!

Trump declared a national emergency at the border in February, shortly after Congress refused to grant him the more than $5 billion he had demanded for a wall at the southern border. The declaration is meant to free up $3.6 billion in funding for barriers at the border. Democrats, and some Republicans, opposed Trump’s declaration and passed legislation to block the move -- subsequently vetoed by the president.

According to Customs and Border Protection, more than 76,000 migrants were detained in February, marking the highest number of apprehensions in 12 years. That figure includes more than 7,000 unaccompanied children. More than 36,000 migrant families have arrived in the El Paso region in fiscal 2019, compared with about 2,000 at the same time last year, according to CBP data.

OBAMA'S IMMIGRATION CHIEFS SPEAK OUT ON 'CRISIS' AT SOUTHERN BORDER

Former Obama administration officials are publicly agreeing with President Trump’s assessment that there is a crisis at the southern border -- even as some Democrats oppose Trump's declaration of a national emergency.

“By anyone's definition, by any measure, right now we have a crisis at our southern border,” former Department of Homeland Security Secretary Jeh Johnson said on “Cavuto LIVE” on Saturday, citing recent statistics that “there were 4,000 apprehensions in one day alone this past week, and we're on pace for 100,000 apprehensions on our southern border this month.”

“That is by far a greater number than anything I saw on my watch in my three years as secretary of Homeland Security,” he said.

Following President Trump's threat to close the U.S.-Mexico border, several Democrats -- including Rep. Filemon Vela Jr. of Texas and 2020 presidential candidate Julian Castro, also from Texas, -- spoke out against the president’s plan.

2020 DEM JULIAN CASTRO CALLS FOR ILLEGAL IMMIGRATION TO BE TREATED AS CIVIL, NOT CRIMINAL, OFFENSE

“Instead of building a wall or closing the border or cutting off aid to the Central American countries, which is downright stupid, we should actually go in the other direction. We should choose compassion instead of cruelty,” said Castro.

“The idea that any president of the United States would ever suggest that we should shut down our ports of entry is just moronic,” Vela said.

Cueto responded to the comments by saying, “You can have a bunch of individuals saying ‘it’s the wrong thing to do, it’s the wrong thing to do,’ or saying it’s moronic and using their verbiage to slam the president, but in the end they’re not down here. They haven’t even bothered to come and speak to the agents and the boots on the ground and ask what is it that we need.”

He added, “I haven’t seen any of them down here working with us. I haven’t seen any of them down here, you know, asking to speak to any of us. I have an open invitation. They can come down and I’ll show them the issues of what’s happening down at the border right now.”

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Cueto then listed some of the issues: “We are getting overrun, our facilities are over capacity, we have agents that have been removed from certain areas that are patrolling the border and are defending our nation’s border so they can do some babysitting duties and take care of these individuals that are coming through."

"We are definitely at a crisis and it’s an emergency," Cueto said. "We welcome more agents coming down here to the southern border and assisting, but in the end, you know, something needs to be done about the overflow of these individuals that are coming into the country and if there is other countries that are facilitating this invasion, they obviously need to step up to the plate and start doing something about it.”

The Associated Press contributed to this report.