What is the Historical Basis for a 2-party system in the U. S.?

Why did the us government remove native americans from the southeast in the 1830s

What’s the term used for a lawyer who argues for the convection for a defendant in a criminal case?

To what extent did mary lease's concepts of justice, freedom, and equality agree with those of samuel gompers and emilio aguinaldo? how did they compare with those of the pinkertons at homestead?