▁" triangle ▁of ▁common ▁interest " ▁or ▁the ▁" ir on ▁triangle ," ▁was ▁preserved . ▁ ▁Furthermore , ▁long ▁one - party ▁rule ▁by ▁the ▁L DP ▁caused ▁a ▁severe ▁struggle ▁for ▁the ▁party ▁president ial ▁elections . ▁Once ▁a ▁person ▁becomes ▁president ▁of ▁the ▁L DP , ▁he ▁or ▁she ▁will ▁automatically ▁be ▁elected ▁prime ▁minister ▁of ▁Japan , ▁so ▁the ▁president ial ▁election ▁of ▁the ▁L DP ▁means ▁the ▁de ▁fact o ▁selection ▁of ▁the ▁prime ▁minister . ▁ ▁Con sequently , ▁fa ction al ▁politics ▁inside ▁the ▁L DP ▁were ▁more ▁important ▁to ▁L DP ▁leaders ▁than ▁the ▁contest ▁among ▁political ▁parties , ▁as ▁fa ction al ▁leaders ▁in ▁the ▁L DP ▁had ▁to ▁organ ize ▁a ▁large ▁number ▁of ▁follow ers ▁and ▁collect ▁substantial ▁political ▁funds ▁in ▁order ▁to ▁win ▁the ▁L DP ▁president ial ▁election ▁and ▁maintain ▁power . ▁ ▁Iron ▁Tri angle ▁ ▁Business ▁sector ▁remained ▁close ▁in ▁contact ▁with ▁the ▁L DP , ▁as ▁it ▁was ▁the ▁sole ▁party ▁which ▁could ▁exercise ▁government al ▁power . ▁Bureau cr ats ▁aligned ▁with ▁the ▁L DP ▁polit icians ’ ▁suggestions ▁because ▁they ▁bare ly ▁expected ▁a ▁change ▁of ▁government . ▁Moreover , ▁b ureau cr ats ▁supported ▁the ▁L DP ▁more ▁act ively ▁in ▁order ▁to ▁become ▁members ▁of ▁the ▁Diet ▁after ▁ret irement . ▁Each ▁sub comm ittee ▁of ▁the ▁Policy ▁Affairs ▁Research ▁Council ▁( PAR C ) ▁of ▁the ▁L DP ▁was ▁assigned ▁to ▁its ▁appropriate ▁government ▁department , ▁also ▁known ▁as ▁the ▁am ak