ɪn wˈʌnhˈʌndɹɪd twˈɛnti tˈuː bˌiːsˈiː, hiː bɪkˌeɪm ɐ pləbˈiːən tɹˈɪbjuːn tʊ ɐsˈɪst ɡˈeɪəs ɡɹˈækəs ɡˈeɪəs hɐdbɪn tɹˈɪbjuːn sˈɪns ðə pɹˈiːviəs jˈɪɹ, hˌævɪŋ bˌɪn ᵻlˈɛktᵻd fɔːɹ wˈʌnhˈʌndɹɪd twˈɛnti θɹˈiː, ɪn ˈɪmplɪməntɪŋ ɐ lˈaɪtlimˈɑːdᵻfˌaɪd vˈɜːʒən ʌv hɪz pˈɑːlɪsi ʌv sˈɪɾɪzənʃˌɪp fɔːɹ ɪtˈæliənz.
In 122 BC, he became a plebeian tribune to assist Gaius Gracchus – Gaius had been tribune since the previous year, having been elected for 123, – in implementing a lightly-modified version of his policy of citizenship for Italians.