A BIG CHANGE FROM JEH JOHNSON: Retired Marine Gen. John F. Kelly picked to head Department of Homeland Security. “In the end, people familiar with the transition said, the choice came down to Kelly and Rep. Michael McCaul (R-Tex.), chairman of the House Homeland Security Committee. McCaul was considered an early favorite, but his chances were hurt by opposition from some conservatives who found him insufficiently tough on border security, the people said.”