His step sister was - he has no full-blooded siblings.

Yes.
"We are colorful, for sure," Maya Soetero-Ng, Obama's sister, said. She is actually his half sister.
I have great hope that that spectrum will be regarded as gorgeous, and that everyone will see themselves in it," said Soetero-Ng, who teaches high school in Hawaii.
The family's Kenyan contingent won't be able to be present. This includes ...

Yes.
"We are colorful, for sure," Maya Soetero-Ng, Obama's sister, said. She is actually his half sister.
I have great hope that that spectrum will be regarded as gorgeous, and that everyone will see themselves in it," said Soetero-Ng, who teaches high school in Hawaii.
The family's Kenyan contingent won't be able to be present. This includes his half brother George who lives in a hut and makes some $30 per year. But has a picture of Barak on the wall.
In Obama's extended family, there are many mixed marriages, encompassing white, black, Indonesian and Chinese-Canadian.
But, Soetero-Ng said, the audience should also realize that the Obamas are a family like any other.

"I'm hoping that they will see the warmth and the affection of their own families" when the audience looks at the group onstage, she said.

I think so
gigia