tokyo pledge spend education child care stay tough north korea revise pacifist constitution likely pillars japanese prime minister shinzo abe campaign snap election next month government source say tuesday abe expect announce monday call general election oct. 22 take advantage rebound damage approval rat disarray opposition rule party government source say prime minister whose rat recover 30 percent july bet rule bloc minimum retain simple majority chamber best keep two-thirds super-majority need achieve long-held goal revise constitution clarify military role solid victory would boost abe chance third term rule liberal democratic party ldp leader party election next september put track become japan longest-serving premier big goal say veteran independent political analyst minoru morita abe support rise 6.5 point 50.3 percent poll conduct weekend sankei newspaper fuji news network back ldp 38 percent compare 6.4 percent main opposition democratic party abe want go ahead plan rise nation sales tax 10 percent percent use revenue create social security system generations would invest education decrease proportion sales tax revenue use pay government debt source say japan social welfare system weight toward spend elderly people age 65 account whop 27.7 percent population accord late government data promise anything want make nod toward equitable society empower women work-life balance welfare generations say jeffrey kingston director asian study temple university japan get strategy go win use less tax revenue pay debt however would make difficult already ambitious pledge balance budget exclude debt-servicing new bond sales year march 2021. could turn raise concern less rigid fiscal discipline maintain fiscal discipline regardless finance minister taro aso tell reporters ask report shift abe say decide snap election return unite state friday opposition democrats struggle single-digit support also raft defections nascent japan first party boast tie popular tokyo governor yuriko koike could attract vote yet draft platform pick candidates formally register party mean ldp junior coalition partner komeito shoot retain two-thirds majority low house political analysts say however analysts believe abe electoral base could undermine voter distaste suspect cronyism scandals concern create political vacuum even north korea raise tensions nuclear missile test dismiss possibility voters give abe nasty surprise say gerry curtis professor emeritus columbia university new york eye snap election japan 's abe focus education security