[Zhang Fei]

Looking at that boy with his dark features and course hair kinda hard to believe Jeb Bush is his old man. Looks all Mexican to me.

Not really. His features are exactly that of Jeb Bush. His coloration is probably from hanging out on the beach and on golf courses. His mom's coloration isn't much different from Jeb Bush's. When patrician types like the Bushes marry Hispanics, they're usually of 90%-100%* European ancestry. Here's what somewhat with 70% European ancestry looks like, without the tan:

This is Jeb Bush's wife:

There's a bright future in politics for him - in the Democratic Party. Heck, they take fake Indians like Elizabeth Warren, so someone with 5% genuine (Mexican) Indian blood like GPB should have no problem blending in as yet another non-white ethnic politician.

[x]

His coloration is probably from hanging out on the beach and on golf courses.

GPB does look darker than his mother.

[NKP_Vet]

I’ve seen many pictures of George P. Bush all over the internet, from a young kid, to a grown man. No way in the world if he and Jeb Bush are standing side-by-side that anyone would think Bush was his father. Aint happening. He’s always been dark and looks 100% Mexican, and not Mexican of European descent. His grandparents on his mother’s side were migrant workers, not European royalty.