No- naturalized citizens are not qualified to be President, according to the US Constitution. To be president, the person must be born in the USA. So, yes, they must be a citizen to be president but a natural, not a naturalizedcitizen.
To the United States
1. The president in Poland is elected by direct election, by all citizens above 18 years of age. 2. There is no vice president in Poland.
A/An republic is rule by representatives who are elected by the citizens
No. The Constitution permits only natural born citizens to be elected President. The Constitution was adopted in 1789, therefore it was in force in the 1800s.
African-Americans are first-class citizens just like anyone else who was either born in the United States or who are naturalized citizens.