Sen. Steve Daines just returned from a visit to the U.S.-Mexico border, and he's challenging his fellow lawmakers to take similar trips to get a first-hand look at the crisis.

Daines (R-Mont.) and Sen. David Perdue (R-Ga.) met with Border Patrol agents in the wee hours of Monday morning and spent the night at the Rio Grande Valley Sector of the southern border.

On "Outnumbered Overtime" Tuesday, Daines said that particular sector -- which is barrier-less and is located just outside McAllen, Texas -- is "ground zero" for illegal immigrant apprehensions and drug trafficking.

Ricky Rebel on Wearing Pro-Trump Jacket to Grammys: 'He Inspired Me to Become the New Alpha'

Tomi's First Thoughts: 'New Socialist Clowns' Want a Complete Restructuring of America

"I wish every member of Congress would take off their suits, leave the Beltway, put on their jeans and their hiking boots and spend a night with Border Patrol," Daines said.

He revealed that they witnessed agents engaging in "running pursuits" and apprehending individuals trying to illegally cross into the U.S.

"During the night, they picked up hundreds -- hundreds -- of illegal immigrants that are crossing the border," Daines said.

As for the debate on Capitol Hill over border security funding, Daines said there must be more boots on the ground and better technology, but also a physical barrier.

"It is so porous and so primitive, the border down there. I wish every member of Congress could see it, because we're literally making these men and women try to do their job with one arm tied behind their backs, because we've not allowed them to have a physical barrier," Daines said, arguing that barriers have proven to be extremely effective near Yuma and El Paso.

Watch the "Outnumbered Overtime" interview above, and sign up for Fox Nation to see Tomi Lahren's powerful, in-depth look at border security, "Keeping America Safe."

Lara Trump: Dems' Opposition to Border Security Funding Is All About Saying 'No' to President

Trump Touts ‘Moral’ Border Wall on ‘Ingraham Angle’: It’s ‘a Very Good Thing’

Conway Slams 'Big-Mouth Dems' Over Calls to Defund ICE: They're 'Hurtling Us Toward a Shutdown'

TX Agriculture Commissioner Ahead of Trump Rally: Fencing in El Paso 'Has Stopped Crime'