▁in ▁addition ▁to ▁being ▁president ▁of ▁the ▁P DC . ▁Frei ▁Ru iz - Tag le ▁comfort ably ▁im posed ▁himself ▁on ▁other ▁names ▁that ▁sound ed ▁in ▁the ▁collect ive , ▁such ▁as ▁Gabriel ▁Val d és ▁and ▁And rés ▁Z ald í var , ▁being ▁proc laimed ▁on ▁December ▁ 1 3 , ▁ 1 9 9 2 . ▁ ▁Meanwhile , ▁within ▁the ▁left ist ▁sector ▁of ▁the ▁Con cert ación ▁( a ▁b loc ▁led ▁by ▁the ▁Social ist ▁( PS ) ▁and ▁For ▁Dem ocracy ▁( PP D ) ▁parties ) ▁Ric ardo ▁Lag os , ▁a ▁lawyer ▁and ▁econom ist , ▁res igned ▁from ▁the ▁Ministry ▁of ▁Education ▁on ▁September ▁ 2 8 , ▁ 1 9 9 2 ▁to ▁present ▁as ▁prec andid ate . ▁ ▁The ▁Rad ical ▁Party ▁( PR ) ▁proc laimed ▁Senator ▁An sel mo ▁S ule ▁as ▁his ▁president ial ▁candidate ▁on ▁August ▁ 1 5 , ▁ 1 9 9 2 , ▁although ▁he ▁decl ined ▁his ▁nom ination ▁in ▁favor ▁of ▁Lag os . ▁ ▁Camp aign ▁and ▁election ▁ ▁The ▁Con cert ación ▁created ▁a ▁commission ▁of ▁polit icians ▁to ▁study ▁the ▁methods ▁to ▁nomin ate ▁its ▁president ial ▁candidate , ▁which ▁was ▁composed ▁by ▁Gen aro ▁Ar ri ag ada ▁( P DC ), ▁Er ich ▁Sch nake ▁( PP D ), ▁Ben j am ín ▁Te pl iz ky ▁( PR ) ▁and ▁Hern án ▁V od an ov ic ▁( PS ). ▁The ▁so -