What roles do the two major political parties play in our political system?

federal power is further limited with a system of checks and balances that gives each branch of government a measure of power over the others.

explanation:

the answer is selfishly. hope this !

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so.