How Does the Judicial Branch check the powers of the Legislative and Executive Branch?

Question

How Does the Judicial Branch check the powers of the Legislative and Executive Branch?

Answer 1

Well it's like this the congress writes a law, the president veto's it, congress overturns him, the president appoints a judge, the judicial branch declares it unconstitutional, the president says s***w you I'm not enforcing that, Congress impeaches the president.... and on and on.

There you have your checks and balances.  All In Fighting All the Time.

Answer 2

By making sure that the laws passed by the Legislative Branch and executed by the Executive Branch match the intent of the Constitution

Answer 3

sounds like a homework question.