The chief of the U.S. Border Patrol on Wednesday endorsed expanding the wall between the United States and Mexico, as called for by President-elect Donald Trump.

"Do we need more fencing? Yes," said Border Patrol Chief Mark Morgan.

"Does it work? Yes," he added.

In two hours of testimony before the Senate Homeland Security and Governmental Affairs Committee chaired by Wisconsin Sen. Ron Johnson, the chief repeatedly endorsed the wall but added that it is only part of an integrated system to stop illegals, drugs and terrorists from crossing into the United States.

"Do we need it everywhere? No. Is it the sole answer? No," he added.

Morgan noted that on some parts of the border, a fence is impractical because there are no roads to the border.

Johnson, however, said that he and his committee are ready to work with the Border Patrol to fund roads and other access to get agents to the border and to build more of the wall.

During the hearing, Border Patrol officials described the technology and physical structures to stop illegals from crossing, noting that apprehensions are down significantly over the past two decades.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com