Henneberger quotes Jackie O, but 'I don't think she said that publicly at the time.' Please, Ms. Henneberger: Provide a citation in which Jackie O ever made this statement [that JFK was a bad Catholic].
This is quoted in Garry Wills' book "The Kennedy Imprisonment" where it is said that Ms. Kennedy said to Arthur Krock, "I think it is unfair for Jack to be opposed because he is a Catholic. After all, he's such a poor Catholic. Now if it were Bobby: he never misses mass and prays all the time."