Separating God and politics in Mexico

In addition to peddling a laughably superficial narrative about Church-state relations in early 20th century Mexico, the Washington Post article mentioned below quotes an angry supporter of López Obrador who is critical (as are, apparently, many protesters and demonstrators) of Cardinal Rivera for urging Mexican Catholicss to (quoting the Post) "respect a decision by a special elections court rejecting López Obrador's request for a full recount and ordering a recount of only 9 percent of polling places[.]"  According to this critic, the Cardinal is "getting into politics . . . The church is for God, not for politics."  The Post's writer similarly characterize Rivera as "blend[ing] the spiritual and the secular."

But, Lopez Obrador's entire campaign has been soaked in religious imagery and language, decorated with pictures of saints, Pope John Paul II, and the Virgin of Guadalupe.  Who is "blend[ing] the spiritual and the secular"?