Obama is "US-born".
Sheesh. Come, my friends, 'Tis not too late to seek a newer world.
Allowing native-born children of immigrants as small-n native Americans would be too loose to create an effective tribalism, but going more than two or three generations back would normally sacrifice too many potential nativist allies. I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.