The Justicialist Party (JP) akasarudza Bittel mutevedzeri waro Mutungamiri panguva yehurumende yeudzvinyiriri, kunyange ivo nemamwe mapato ezvematongerwo enyika vakaramba vakarambidzwa kuita mabasa eruzhinji; sezvo mutungamiri webato, mutungamiri akambodzingwa Isabel Perón, akaramba akachengetwa, izvi zvakaita kuti Bittel ave nhengo yepamusoro yebato iri. Muchiitiko ichocho, Bittel akanyora muchivande mushumo wakadzama pamusoro pemhirizhonga yekodzero dzevanhu
- vakawanda vavo vaiva vamwe vake vaPeronist. Mushumo wacho wakapiwa kukomiti yokuwana zvokwadi yakaunganidzwa neInter-American Commission on Human Rights, mukati meshanyo yavo yaSeptember 1979 kuArgentina. Iyo faira yakabatsira kuisa nhema kune hurumende inoramba zvakasimba kushungurudzwa kwayo, uye yakabatsira kuenzanisa maPeronists (kusvika ikozvino akaparadzaniswa pakati pemapoka ekuruboshwe nekurudyi) kurwisa hutongi. Kusarudzwa kwakanga kuri kuwedzera, akatungamirira JP mu "Multiparty" yakaumbwa naUCR mutungamiri Ricardo Balbín pakutanga kwa1981 kuti atungamirire hutongi hwekutonga kuti adzokere kuhurumende yehurumende.