advocates

backer campaigner defender lawyer promoter proponent supporter

apostle attorney champion counsel exponent expounder pleader proposer speaker spokesperson upholder

opponent

antagonist assailant enemy opposition protestor

back campaign for defend encourage favor further justify press for promote propose push recommend support tout uphold urge

advance advise bless bolster boost champion countenance plug side vindicate

argue for be in corner brace up build up get on bandwagon give a leg up give a lift go for go to bat for go with hold with plead for plump for ride shotgun for root for run interference for say so speak for spread around stump for

block conceal condemn deny disapprove discourage dissuade hide hinder hurt oppose refuse reject

decrease halt prevent undermine

assail attack criticize impugn protest