As for Michelle’s remark that BO’s mother had been “very young and very single” at the time of his birth, I recall that there is video of the Rev Jeremiah Wright talking about how Obama was the candidate who could relate to the plight of the poor single mother, having been the child of a poor single mother himself.
Something like that. Worth checking into, I suppose.
They want her to be single so the Kenya birth wouldn’t make sense, for one thing; and if she had given birth in Kenya but was single, he at least would be a US citizen if not natural born. But, if he was born in Kenya and she was married to 0bama Sr in Kenya (or wherever, if they were married, seems likely there), then he was not a US citizen of any kind.
So they like to say she was single.
That’s what I think is their motivation.