brasilia brazilian president michel temer face split coalition likely derail plan put brazil financial house order majority congressmen main ally party vote put trial graft allegations low house congress vote 251-233 wednesday shelve corruption case temer ensure survival office president reform agenda appear tatters little chance pass effective overhaul costly social security pension system brazilian social democratic party psdb lawmakers opt go trial big revolt yet 13-month-old government 23 congressmen psdb vote stand trial supreme court 20 support president coalition disarray temer muster sufficient vote pass pension reform cornerstone efforts plug budget deficit scar investors temer celebrate wednesday victory proclaim truth say government would return task recover brazil bad ever recession chief staff eliseu padilha say pension reform talk would resume within days however temer even win simple majority wednesday night 513-seat low house simple majority need pass new laws far 308-vote super majority require constitutional amendment pension reform bill see approve even debate fabio sousa first-term psdb lawmaker say pension reform government fragile general elections next year sousa believe ground put temer trial graft want see party break government withdraw four minister cabinet many psdb back economic reform like temer propose think need come legitimate government temer popularity sink impeach leftist dilma rousseff help oust last year brazil stock foreign currency financial market react calmly wednesday vote up down far percent sign temer survival narrow margin well price everyone know temer lame duck nobody believe social security reform anymore say fabio knijnik manage director sao paulo-based wealth fund k2 capital say even small pension reform pass would big surprise plus investors finance minister henrique meirelles tell journalists government would insist current proposal minimum retirement age strict rule pension benefit pension bill would make brazilians retire late order stave financial collapse social security system many lawmakers include vote spare temer criminal trial reluctant vote unpopular bill elections approach 2018. clear broad pension reform approve congress temer administration change possible political analysts brasilia-based consultancy arko advice write report week split temer rule coalition likely doom reform agenda