According to ABC News, the Trump campaign considered using CA as a hedge bet in-case the RNC wouldn't share its data. The campaign ultimately rejected their bid for the general election [0].

[0] https://www.cbsnews.com/news/trump-campaign-phased-out-use-o...

As for the parent, people love to cry about whataboutism, but it is useful to see how people respond when something is done by their favored politician versus an opponent.