A left-wing media outlet accused Heritage Foundation President Kevin Roberts on Friday of having ties to what they describe as a “radical and secretive” Catholic group.

The Guardian published an article alleging Roberts was tied to Opus Dei, a Catholic faith group, by saying he receives “spiritual guidance” from the Catholic Information Center (CIC). The article calls Opus Dei a “radical and secretive” group because it does not disclose the names of its members, with Villanova theology professor Massimo Faggioli telling the outlet that Opus Dei is part of a movement of “traditionalist Catholicism” in the U.S.