In a posting on her Facebook page Monday, Palin blasted Emanuel for calling an idea from some of President Obama's supporters "f---ing retarded" during an August meeting with liberal groups and White House aides.
The Wall Street Journal reported last week that Emanuel made the remarks after some participants said they planned to air ads attacking conservative Democrats who were critical of Obama's health care agenda.
Palin, whose youngest child, Trig, has Down Syndrome, wrote that Emanuel's expletive was "heartbreaking" and said his "degrading scolding" has been "completely ignored by the White House."
"Just as we'd be appalled if any public figure of Rahm’s stature ever used the "N-word" or other such inappropriate language, Rahm’s slur on all God's children with cognitive and developmental disabilities -- and the people who love them -- is unacceptable, and it’s heartbreaking," wrote Palin.
"Rahm is known for his caustic, crude references about those with whom he disagrees, but his recent tirade against participants in a strategy session was such a strong slap in many American faces that our president is doing himself a disservice by seeming to condone Rahm’s recent sick and offensive tactic," she continued.
Emanuel reportedly apologized for the remarks in a phone call last week to Tim Shriver, CEO of the Special Olympics, which has launched a campaign to end use of the "R" word.
"Rahm called Tim Shriver Wednesday to apologize and the apology was accepted," a White House official told Politico.com on Tuesday.
"The White House remains committed to addressing the concerns and needs of Americans living with disabilities and recognizes that derogatory remarks demean us all," the official reportedly said.
In describing his measly score, Obama said, "It's like -- it was like Special Olympics, or something.”
A White House spokesman was forced to release a hurried statement which said: "The president made an off-hand remark making fun of his own bowling that was in no way intended to disparage the Special Olympics. He thinks the Special Olympics is a wonderful program that gives an opportunity for people with disabilities from around the world."
At the time, Palin responded by saying: “I was shocked to learn of the comment made by President Obama about Special Olympics. This was a degrading remark about our world's most precious and unique people, coming from the most powerful position in the world... I hope President Obama’s comments do not reflect how he truly feels about the special needs community."
NewsCore contributed to this report.