Sharecroppers were free people and slaves weren't. Slaves didn't "rent" a piece of someone's land and work on it. They were forced to work on land since they were owned by the land owner.
One reason that they have two parties is because peoples points of views we all don't think alike so we were given more options. It also gives us a chance to vote for the better of the two finalist.
Hello.
the republicans in congress did get angry because of Johnsons actions. the republicans refused to allow the southern representatives to take their seats at the congress.