Only six other U.S. presidents had a foreign-born parent. Mr. Obama will be the first in nearly ninety years, since President Herbert Hoover was inaugurated in 1929.
Andrew Jackson (1829-1837) is the only president born of two immigrants, both Irish. Presidents with one immigrant parent are Thomas Jefferson (1801-1809), whose mother was born in England, James Buchanan (1857-1861) and Chester Arthur (1881-1885), both of whom had Irish fathers, and Woodrow Wilson (1913-1921) and Herbert Hoover (1929-1933), whose mothers were born respectively in England and Canada.
The Constitution grandfathers those here at time we adopted the constitution.
“No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty five Years, and been fourteen Years a Resident within the United States”