tokyo tokyo governor yuriko koike whose new party challenge japanese prime minister shinzo abe rule bloc oct. 22 national election say would 100 percent run poll late twist drama give voters whiplash speculation persist koike former ldp member defense minister would resign run seat parliament need make bid premiership say run election begin koike say interview yomiuri newspaper report tuesday 100 percent run election late repeat comment reporters koike personally contest election analysts believe would hope party position win next national poll gain voter boost 2020 tokyo olympics abe announce snap election last week hop liberal democratic party-led coalition would keep majority parliament low house hold two-thirds super majority chamber dissolve koike new party hope launch last week reformist conservative alternative abe equally conservative ldp cloud outlook amid sign voters disillusion abe nearly five years power koike dilemma whether run seat face backlash voters quit governor little year since defy ldp run successfully post risk let shoot top job slip finger analysts saw decision seek seat sign koike think party momentum fade must think would worthwhile abandon post tokyo governor become head opposition say tetsuro kato professor emeritus hitotsubashi university koike get negative media coverage say would exclude candidates agree party policies stance see bar liberal members fail main opposition democratic party join leaders democratic party fractious mix conservatives liberals decide last week would run candidates let members run koike party koike comment applaud effort ensure policy consistency others dictatorial maneuver brand new party make clear stand danger abe own arrogance power space vie say jeffrey kingston director asian study temple university japan abe support rat fell early year due suspect cronyism scandals many voters perception grow complacent arrogant nearly five years office rat late rebound drop 37 percent late poll public broadcaster nhk koike party insist want run ticket sign policy pledge include revise pacifist constitution exercise right collective self-defense militarily aid ally attack-defense document see reuters show many liberals balk policies koike party tuesday unveil list 192 candidates low house election compare 233 seat need simple majority party plan announce candidates come days senior party member concede tall order win majority although field 233 candidates high mountain would like finish climb hand actuality would considerably difficult us alone gain majority even field 233 say goshi hosono found member party former environment minister complicate outlook liberals democratic party launch constitutional democratic party japan csdp could split opposition vote help abe bloc keep majority much tough predict koike tough resilient tap fact abe negative rat pretty high lot people unhappy kingston say late twist japan election drama tokyo 's koike say wo n't seek seat