lima lead peruvian opposition lawmaker monday call country vice president martin vizcarra govern country congress oust president pedro pablo kuczynski graft allegations deny enough political party commit back motion oust kuczynski schedule vote opposition-run congress thursday kuczynski repeatedly say nothing improper recently disclose business tie deny odebrecht odbes.ul brazilian builder center latin america big corruption scandal kuczynski depart vizcarra would authorize carry rest kuczynski schedule 2016-2021 term congresswoman luz salgado deny party popular force majority peru single-chamber congress would seek topple vizcarra charge opponents vizcarra job well assume role history offer correspond support say salgado key leader party think best country try find fault anyone kuczynski vizcarra offices decline request comment major policy change expect kuczynski replace vizcarra former governor copper-rich andean region peru current ambassador canada political crisis spook investors one latin america stable economies go important impact economy investments go delay say carlos galvez chief financial officer peruvian miner buenaventura 79-year-old former wall street banker kuczynski part rightward shift south american politics elect last year fight survival underscore risk face political leaders long business resume graft scandals roil region kuczynski describe popular force efforts unseat authoritarian attack institutions criticize party give time defend look like banana republic without proper procedure congress usurp presidency house minister carlos bruce tell journalists monday popular force say hop uproot corruption act within bound constitution party emerge right-wing movement start country former authoritarian president alberto fujimori prison graft human right crimes lead kuczynski defeat electoral rival keiko fujimori new elections would worst-case scenario investors would call vizcarra second vice president mercedes araoz leave office 2021 scenario araoz rule interview reuters sunday peru opposition want vice president govern president oust lawmaker