Washington, DC (LifeNews.com) -- The campaign of presidential candidate John McCain has responded to attacks on his running mate Sarah Palin with a new ad touting his support for stem cell research. Palin came under attack from pro-abortion vice-presidential candidate Joe Biden claiming she doesn't support the science.

Biden questioned Palin's commitment to special needs children by attacking Palin's stance on the issue of embryonic stem cell research, which has never helped a single patient.

"Well guess what folks? If you care about it, why don't you support stem cell research?" Biden asked.

Today, the McCain campaign released its latest radio ad, entitled "Stem Cell" that highlights a McCain administration's support for stem cell research to advance medical discovery and treatment.

The ad will air in key battleground states, the campaign told LifeNews.com Friday.

"John McCain will lead his Congressional allies to improve America's health," the ad says.

"Stem cell research to unlock the mystery of cancer, diabetes, heart disease; stem cell research to help free families from the fear and devastation of illness; stem cell research to help doctors repair spinal cord damage, knee injuries, serious burns; stem cell research to help stroke victims," it explains.

"And, John McCain and his Congressional allies will invest millions more in new NIH medical research to prevent disease," the ad continues. "Medical breakthroughs to help you get better, faster. Change is coming."

After the Biden attacks, the McCain campaign released a statement to LifeNews.com saying his comments were "offensive."

And Marjorie Dannenfelser, the head of the Susan B. Anthony List, a pro-life women's group, also took strong exception to Biden's "caustic" comments.
"Biden outrageously implied that Americans who refuse to sacrifice innocent human life in the name of unproven, desperate attempts to cure our nation’s ills through embryo-destructive research somehow don't really care about children," she told LifeNews.com.

"I am a mother of five children, one with a mental disability. The fact that Joe Biden questioned the compassion of parents like me – Governor Sarah Palin, among them – makes me sputter in disbelief," she added.

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Listen to the ad - http://www.youtube.com/watch?v=U-2ayFo3BXs

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