Neocon Chameleons Return As Progressives

The decline and closure of the neocon flagship journal, The Weekly Standard, did not slow the neocons at all. They are back with a new publication funded by a left-wing billionaire, but preaching from the same neocon playbook. Why do neocons continue to change their stripes, from Trotskyites in the 1930's, to Reagan conservatives, to Hillary-ite liberals?