Jon Jones isn’t letting up on his efforts to be part of next year’s historic UFC event at the White House. The former two-division UFC champion announced  his retirement in late June. Two weeks later, after the White House event  was announced , Jones came  out of retirement and rejoined the UFC anti-doping testing pool.  UFC CEO  Dana White initially threw  cold water on Jones’ aspirations to be part of the event, but that hasn’t detoured Jones’ efforts.