. ▁Department ▁of ▁Hom eland ▁Security , ▁where ▁he ▁created ▁and ▁admin ister ed ▁policy ▁focused ▁on ▁imm igration ▁benefits ▁programs , ▁including ▁with ▁respect ▁to ▁temporary ▁workers ▁and ▁imm igr ants . ▁He ▁was ▁also ▁Chair ▁of ▁the ▁O E CD ▁Working ▁Party ▁on ▁M igration . ▁ ▁Private ▁sector ▁C iss na ▁was ▁an ▁att orney ▁at ▁the ▁law ▁firm ▁of ▁Kauf man ▁& ▁Can oles ▁in ▁Richmond , ▁Virginia , ▁working ▁in ▁the ▁imm igration ▁group . ▁He ▁also ▁pract iced ▁law ▁at ▁Ste pt oe ▁& ▁Johnson ▁L LP ▁and ▁Kirk pat rick ▁& ▁Lock hart ▁L LP ▁in ▁their ▁international ▁trade ▁practice ▁group . ▁ ▁US C IS ▁Director ▁ ▁Nom ination ▁On ▁April ▁ 8 , ▁ 2 0 1 7 , ▁President ▁Trump ▁announced ▁his ▁intent ▁to ▁nomin ate ▁C iss na ▁as ▁Director ▁of ▁United ▁States ▁Cit iz ens hip ▁and ▁Im m igration ▁Services . ▁That ▁ag ency ▁is ▁under ▁the ▁Department ▁of ▁Hom eland ▁Security , ▁where ▁C iss na ▁currently ▁works ▁as ▁director ▁of ▁imm igration ▁policy ▁in ▁the ▁Office ▁of ▁Policy . ▁ ▁The ▁Trump ▁administration ▁was ▁interested ▁in ▁C iss na ▁due ▁to ▁his ▁work ▁on ▁the ▁disp lacement ▁of ▁U . S . ▁workers ▁by ▁foreign ▁workers ▁on ▁H - 1 B ▁vis as . ▁Mark ▁K rik or ian , ▁executive ▁director ▁of ▁the ▁Center ▁for ▁Im m igration ▁Studies , ▁stated ▁that ▁C iss na ▁is ▁" very ▁knowledge able ▁about ▁the ▁imm igration ▁system " ▁and