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Bad medicine? Ben Carson comes up short in debate

Retired neurosurgeon Ben Carson looked out of his league during Tuesday night’s Republican presidential debate in Las Vegas

Republican presidential candidate Ben Carson speaks during the CNN Republican presidential debate on Dec. 15, 2015 in Las Vegas, Nev. (Photo by Justin Sullivan/Getty)
Republican presidential candidate Ben Carson speaks during the CNN Republican presidential debate on Dec. 15, 2015 in Las Vegas, Nev.Getty Images

Emma Margolin

Emma Margolin is a reporter at MSNBC.com.