Republican presidential candidate Ben Carson speaks to reporters before a presidential debate in Simi Valley on Sept. 16, 2015.
Republican presidential candidate Ben Carson speaks to reporters before a presidential debate in Simi Valley on Sept. 16, 2015. dsiders@sacbee.com The Sacramento Bee/David Siders
Republican presidential candidate Ben Carson speaks to reporters before a presidential debate in Simi Valley on Sept. 16, 2015. dsiders@sacbee.com The Sacramento Bee/David Siders