He'll report directly to the President, and DHS, HHS, DOJ and other departments working on the border will report to Tom. He'll be pushing down policies to take control over the border as well as keeping the public informed of the truth about what's happening.
"I can't believe what we're discussing happened nine years ago...with really more questions than answers after all this time... we've had four different investigations already." - George Papadopoulos details the years of investigations into Clapper, Comey, and Brennan.