The following responses are examples of checks and balances:
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The legislative branch can override a veto. - This demonstrates a check on the executive branch, as Congress can override a presidential veto with a sufficient majority.
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The judicial branch can rule a new law unconstitutional. - This serves as a check on both the legislative and executive branches, as the judiciary can invalidate laws that it finds violate the Constitution.
The other options provided do not accurately represent checks and balances:
- The executive branch cannot declare war without congressional approval, so that response is incorrect.
- The executive branch cannot impeach a Supreme Court Justice; rather, impeachment is a power held by the legislative branch (specifically the House of Representatives).
- The judicial branch does not have the power to veto presidential pardons; that power lies with the President.
So the correct answers are the legislative branch can override a veto and the judicial branch can rule a new law unconstitutional.