Mr Rubio, 39, a darling of the Tea Party and touted as a future presidential candidate, was born and raised a Catholic by his Cuban parents. However, for the past six years he and his wife have attended the Christ Fellowship, a Florida congregation which describes itself as “non-denominational” but is affiliated to the Southern Baptist Convention, whose theology is firmly anti-Catholic.

According to the St Petersburg Times, Mr Rubio has donated much of the $66,000 he has given to charity since 2000 to the Christ Fellowship.