What claim(s) are Mason and Marshall making in these excerpts? Do the excerpts corroborate or disagree with one another? On what premise(s) does each author base his claim? What evidence, if any, is offered to support each author’s claim?

this isn't a question and if you're going to list things be kind and use commas.

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.