Sources: Accused gunman chose El Paso because of distance from his hometown; No. 2 Intel official steps down amid Trump's loyalty concerns; Sue Gordon note to Trump: Resignation is out of "Patriotism not preference"; GOP Sen. Burr: Gordon's resignation a "significant loss"; Trump picks Joseph Maguire as acting Intel director; Top Intel official highly recommended for DNI position, steps down; Trump, Biden trade blows after Biden's Iowa speech slip-up; Biden's camp says he misspoke after campaign speech slip-up; Trump: ICE raids act as "very good deterrent"; Docs: Some companies didn't use E-Verify to check workers status; Wash Post: Trump organization uses construction company that employs undocumented workers; via Knit