No, Alec Baldwin and his brothers Daniel, William and Stephen are from Long Island NY, and are of no relation to Adam Baldwin of Firefly fame, who is from Chicago IL. No, Adam Baldwin isn't related...
No
She is a Democrat, and is a member of the progressive caucus within the party.
the United States of America
Adam Smith never lived in America and died before the formation of the modern Democrat Party, and so is not a Democrat.