Ben Carson talks ‘all lives matter,’ immigration reform

Aired: 8/4/2015 | 0:07:42 | Clip
Dr. Benjamin Carson -- one of 10 Republican presidential candidates to make the cut for the first formal debate -- joins Gwen Ifill to discuss the campaign to defund Planned Parenthood, the root causes of gun violence, how he would change U.S. health care, his plan for a guest worker program for undocumented immigrants and the atmosphere of negativity and hatred in America.

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