the only interesting thing about ronald reagan's 100th birthday is watching the collision between ronald reagan, the actual historical figure, and ronald reagan, the mytholigical ideal of the american right. i doubt the historic ronald reagan could get support from the current GOP. i mean, the modern GOP is targeting dick lugar for supporting the NEW START treaty. that treaty is a successor to the original START treaty (i.e. START I) which was first proposed by president ronald reagan.
if ronald reagan were running on his record today, he would probably be branded a RINO by the very same people who hold him out as the ideal of what a GOP candidate should be. his son's reaction is not all that surprising. nor is fact that the right's reaction to any myth-busting is mostly denial.
ADDING: essentially the same point, said better.