The Neocons were former Democrats, as was Reagan, and as such were in opposition with the Old Right, the New Right, the Libertarians.
Reagan favored the Neocons and their form of a somewhat ‘new’ Conservatism that rose out of their departure from the Democrat Party, much like Reagan’s own departure. Irving Kristol, Bill Kristol’s father, was part of the Liberals-turned-Conservative, as was Bill Bennett.
Donald Trump is being critiqued in much the same manner as Reagan was. But Reagan didn’t let it deter him from his plan to make America great again.
Reagan courted the Neocons during his 1980 Presidential campaign . . and subsequently recruited many of them into his administration.
When anyone applauds the Presidency of Ronald Reagan and yet degrades Trump for being ‘too liberal’ . . perhaps they should read the real story behind Reagan’s campaign and administration and see for themselves how Trump closely resembles Ronald Reagan.
http://www.encyclopedia.com/topic/Neoconservatism.aspx