Yes it deependes on WHEN his dad was naturalised
Must be BEFORE he was born
However there is always Barry...
Rick Santorum is qualified to be president because HE was born here. It doesn’t matter where his parents were born or if they are U.S. citizens or not. The Constitution doesn’t mention anything about one’s parents. Rick only has to be a natural born citizen. Since he was born in Virginia, just like Jefferson, Washington, Madison, etc., he is qualified to be president. Case closed.