Ahh, Obama, yeah that’s a big ole can of worms just ripe for popping. Here ya go:

Barack Obama’s mother did not meet the physical presence requirement to automatically pass on citizenship to a child born abroad.Because she did not meet the requirement, ** the fact that Barack Obama was physically born in Hawaii was legally necessary for him to inherit U.S. citizenship at birth.**

The Math of Her Physical Presence: Under the Immigration and Nationality Act of 1952 rules in effect when Barack Obama was born on August 4, 1961, a U.S. citizen married to a non-citizen (his father was a Kenyan national) had to meet specific criteria to pass on citizenship to a child born outside the United States:

The Law Then: The parent had to be physically present in the U.S. for at least 10 years, at least 5 of which had to be after the age of 14.

Her Age: Ann Dunham was born on November 29, 1942. She was 18 years and 8 months old when she gave birth.

The Shortfall: Because she was only 18, it was mathematically impossible for her to have spent 5 years in the United States after turning 14. She would have needed to be at least 19 years old to meet the standard.

Why He Is a Citizen:

Because his mother could not pass down citizenship by blood (jus sanguinis) under the laws of that era, Barack Obama's status as a "natural-born citizen" relied entirely on being born on U.S. soil (jus soli).Official records, including his long-form birth certificate released by the Hawaii Department of Health, confirm he was born at Kapiʻolani Maternity & Gynecological Hospital in Honolulu, Hawaii, two years after Hawaii became the 50th U.S. state.

And now we know why he has a dead man’s social security number.