Obama is the only president with one parent that was not a US citizen.
Both of Jackson's parents were born in Ireland and his father died before the US came into existence but he would have been a US citizen had he lived longer.
All of the other presidential parents were born in what is now the US.
No, howver if you are Citizen you may sponsor a parent
IT DOES NOT MATTER WHAT THE PARENT'S ARE,IT ONLY MATTER'S WHERE THE CHILD IS BORN. IF THE CHILD IS BORN IN THE U.S. THEN THE CHILD IS A U.S. CITIZEN
only Two presidents have been tried
No, generally only presidents of countries who give many speeches.
Three
Only one at a time.
Presidents of what? In the USA, only people who were born in the US or its territories are allowed to be President.
Ford and Lincoln are the only two .
No. He only was one of its many presidents.
Woodrow Wilson is the only one
No, though many presidents were previously governors (including Ronald Reagan, Bill Clinton, and George W. Bush). Many other presidents were senators or vice-presidents.
The Whigs only managed to elect two presidents, Wm. Henry Harrison and Zachary Taylor.