lima peruvian president pedro pablo kuczynski say thursday authorities lead expand graft investigation brazilian builder odebrecht go far raid offices rightwing opposition party rule congress attorney general office spend past year work identify recipients bribe odebrecht admit pay secure contract decade-long period peru one dozen nations acknowledge crimes entangle two former presidents year investigation gather steam recent weeks four executives local construction company jail pending trial former mayor name suspect thursday prosecutors investigate odebrecht finance political campaign search offices rightwing opposition party popular force prompt party representatives accuse attorney general office political bias rare gesture sympathy party often attack kuczynski call prosecutors state authorities respect rule game worry read news raid morning lima offices political party dominate congress say ingratiate congress say respect due process respect internationally kuczynski say televise speech event local mayors kuczynski remark come popular force prepare legislation oust attorney general pablo sanchez repeatedly deny political bias say office work fight corruption impunity sanchez immediately respond request comment raid offices popular force authorize judge richard concepcion early year order ex-presidents ollanta humala alejandro toledo hold pre-trial detention prosecutors prepare criminal charge affront party popular force secretary general jose chlimper tell reporters front one party offices prosecutors work inside look something go find popular force leader twice-defeated presidential candidate keiko fujimori investigation allegedly launder money odebrecht 2011 campaign repeatedly deny recent weeks popular force lawmakers criticize kuczynski decline undergo question congress local media report work odebrecht consultant kuczynski deny allegations send write responses lawmakers question peru 's kuczynski say graft probe go far late raid