>> governor walker, in february you said that we needed to gain partners in the arab world. which arab country not already in the u.s.-led coalition has the potential to be our greatest partner? >> we need to focus on the ones we have. you look at egypt, probably the best relationship we've had in israel at least in my lifetime. incredibly important. you look at the saudi effect earlier this year, i met with saudi leaders and i asked them what's the greatest challenge in the world today. set aside the iran deal. they said the disengagement of america. we're leading from behind under the obama-clinton doctrine. america's a great country. we need to stand up and start leading again and we would have allies in israel and throughout the persian gulf. >> dr. carson in one of his first acts as commander in chief president obama signed an executive order banning enhanced interrogation techniques in fighting terror. as president, would you bring back water boarding?