In order for a person to become a supreme court justice, they must be nominated by the president and approved by the house senate supreme court american voters

Its by the American voters ! hope this helps!

Senate

Explanation:

The senate votes on who will get the position after they are nominated

the system of checks and balances is very important to the us constitution. it makes sure that all three branches of government have limited power. that they do not have too much power. with this system they can limit the amount of power that each one has. that way no branch becomes too powerful.

an example of this is how the executive branch can veto bills from the legislative branch but the legislative branch can still override that veto. the name checks and balances come from the power for one branch to check the   power of another branch to make sure that everything is balanced between all three.

i hope this