The head of the U.S. Border Patrol said Sen. Chuck Schumer, Sen. Bernie Sanders and others on the left are incorrect when they claim a wall is not a useful tool to stop illegal immigration.

"We certainly do need a wall. Talk to any border agent and they will tell you that," Chief Carla Provost said on "Your World." 

Schumer, the Senate Minority Leader, clashed with Trump Monday in a televised Oval Office meeting, and dismissed the idea of funding a border wall.

Provost said that, pending the $5 billion appropriation championed by President Trump, she has "prioritized" the locations where walls should be built along the 1,954-mile border with Mexico.

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She said the Border Patrol needs many more billions to sufficiently secure the border, but will take whatever Congress will approve.

The Border Patrol wants to integrate new "anti-dig" and other technologies with any new wall construction to further optimize border security, Provost added.

"The president has been extremely supportive [of us]," she said, touting the fact that apprehensions increased 88 percent from last year. 

Schumer has argued that the progress is evidence that a wall is not needed at this time. Provost said the wall would allow her agents to operate in areas where they currently cannot. 

Watch Neil's interview above.

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