▁also ▁establish ▁the ▁post ▁of ▁Prime ▁Minister ▁as ▁head ▁of ▁government , ▁rather ▁than ▁the ▁President . ▁The ▁changes ▁would ▁allow ▁President ▁Den is ▁S ass ou ▁N gu esso , ▁whose ▁second ▁term ▁was ▁due ▁to ▁exp ire ▁in ▁ 2 0 1 6 , ▁to ▁run ▁for ▁re - e lection . ▁ ▁Camp aign ▁The ▁official ▁campaign ▁period ▁for ▁the ▁refer endum ▁was ▁scheduled ▁to ▁run ▁from ▁ 9 ▁October ▁to ▁ 2 3 ▁October ▁ 2 0 1 5 . ▁Spe aking ▁at ▁the ▁beginning ▁of ▁the ▁campaign ▁period , ▁Raymond ▁M b oul ou , ▁the ▁Minister ▁of ▁the ▁Inter ior , ▁str essed ▁the ▁importance ▁of ▁campaign ing ▁being ▁conducted ▁" in ▁a ▁climate ▁of ▁social ▁peace , ▁a ▁climate ▁of ▁toler ance , ▁of ▁accept ance ▁of ▁different ▁opinions , ▁a ▁climate ▁that ▁ex cludes ▁provoc ations ▁... ▁and ▁which ▁fund ament ally ▁pres erves ▁the ▁public ▁order ." ▁ ▁A ▁large ▁r ally ▁in ▁support ▁of ▁the ▁refer endum ▁was ▁held ▁in ▁Bra zz av ille ▁on ▁ 1 0 ▁October . ▁Spe aking ▁at ▁the ▁r ally , ▁the ▁Secretary - General ▁of ▁the ▁Cong ol ese ▁Party ▁of ▁Labour ▁( P CT ), ▁Pierre ▁Ng olo , ▁declared ▁that ▁" this ▁human ▁t ide ▁simply ▁wants ▁to ▁say ▁that ▁changing ▁the ▁constitution ▁is ▁the ▁will ▁of ▁the ▁people , ▁and ▁as ▁such ▁no ▁one ▁can ▁stop ▁it ." ▁ ▁A ▁protest ▁against ▁the ▁refer endum ▁was ▁held ▁in ▁Bra zz av ille ▁on