Hitting out at Samajwadi Party president Akhilesh Yadav for supporting opposition candidate Yashwant Sinha in the July 18 presidential election, Uttar Pradesh Deputy Chief Ministers Keshav Prasad Maurya and Brajesh Pathak sought his response on Friday over an old statement of Sinha calling SP patriarch Mulayam Singh Yadav an ISI agent. Maurya and Pathak shared an old newspaper clipping on …