In 2013 he was elected IV Primate of the Anglican Church of Mexico at their 7th General Synod on 14 June 2013, with his installation taking place two days later.

[4] In 2023 Moreno issued a communique where he did not recognize the result of the electoral synod electing his successor as diocesan bishop, alleging serious irregularities and violation of canon law to the point of qualifying it as an electoral fraud, and he was in fact still recognized as the only legitimate bishop by several congregations including the cathedral of the Northern Mexico diocese.

In doing so, they voted to strip Anglican Church of Mexico Archbishop Enrique Treviño Cruz of his primacy and install Moreno as acting primate.

According to news reports, "the dissenting bishops retain control of the financial accounts of the Diocese of the North and the Province of Mexico,"[6] and the Mexican court system found in favor of the group supporting Moreno.

[1] He was seen as a moderate in the context of the current divisions of the Anglican Communion, being friendly with the liberal pro-LGBT provinces, but still opposing civil same-sex marriages and the religious blessing of same-sex unions as the official policy of the province.