His mother got around as they say, and his real father could have been any of probably a thousand guys. He does bear a striking resemblance to Castro, that’s for sure, but absent a DNA test it would be hard to say who is the real dad. I doubt she even knows.
I wish Tucker Carlson wouldn't deal with such stuff. It diminishes him, and us. While Maggie Trudeau did "get around" something like this is impossible for him to prove, and information available now on the Trudeau's travels and dates of Justin's likely conception make Fidel being the father impossible.
In any case, he’s a big dummie. Maybe Biden is his dad.