As Sam says we have not had a Hmong president or Finn, or even a Jewish president. The Jewish population is 1.7–2.6%. Native Americans are about 2.1 million people enrolled in 567 federally recognized tribes. That us about 0,6% of the population. read more
Add to that, there just happens not to have been a candidate even in a primary for a Native American to represent a major party for president. There was however once a chance that where could have been a Native President. read more