Barak’s father was a british subject at that time, not a US citizen. It is a completely different situation.
Historical practice confirms that birth on soil that is under the sovereignty of the United States, but not within a State, satisfies the Natural Born Citizen Clause. For example, Vice President Charles Curtis was born in the territory of Kansas on January 25, 1860 — one year before Kansas became a State. Because the Twelfth Amendment requires that Vice Presidents possess the same qualifications as Presidents, the service of Vice President Curtis verifies that the phrase “natural born Citizen” includes birth outside of any State but within U.S. territory. Similarly, Senator Barry Goldwater was born in Arizona before its statehood, yet attained the Republican Party’s presidential nomination in 1964. And Senator Barack Obama was born in Hawaii on August 4, 1961 — not long after its admission to the Union on August 21, 1959. We find it inconceivable that Senator Obama would have been ineligible for the Presidency had he been born two years earlier.