Reagan Brothers Bicker While Trading on Dad's Legacy

The Reagan half-brothers, who haven't spoken since their father's funeral in 2004, are having a spat over younger brother Ron's claims that the president showed signs of Alzheimer's during his first term.

President Reagan's son Michael is lashing out at his brother Ron, calling him an "embarrassment" to the family for writing in a new book that the late president showed signs of Alzheimer's disease while still in the White House.

While Ron is a member of the wacko left, he seems not to be trashing his father, but rather, telling the truth as he sees it, and Michael seems to be venting stored venom.

"Ron, my brother was an embarrassment to his father when he was alive and today he became an embarrassment to his mother," Michael Reagan, a radio talk-show host, writes on Twitter.

Other tweets from Michael:

"What a way for Ron to say Happy 100th Birthday Dad"

"My brother seems to want sell out his father to sell books ... my father did not suffer from Alzheimers in the 80's"