Sorry, the media gave her that title, reinforced by Biden's remarks.

And his remarks, as per the whitehouse.gov article you linked, do not suggest a “border czar”, or someone who is going to assume the role of Homeland Secuity.

The role as described, and as understood by those who actually interested in such things, is to wotk with government’s south of the border to strengthen THEIR borders and also to identify and begin addressing the root causes of immigrant migration.

It was never to be a “border czar”.

So attempting to look cool by wearing cargo pants and going to the border while making long speeches, as Ted Cruz and a parade of Republicans have done, was never on her dance card.

And the fact that Republicans prefer dancing to actually working on the problem is as plain as the nose on your face.

Just ask Jim Lankford what happened to the bill he helped craft.