how the national government interacts with local and state governments and which entity has jurisdiction over the interaction

In your initial post of at least 250 words, briefly describe one pillar of the American government, how it interacts with the other three pillars, and then provide real-world examples of how that pillar supports the democratic system of government. For example, you may want to discuss how the national government interacts with local and state governments and which entity has jurisdiction over the interactions.

Support your claims with examples from the required material(s) and/or other scholarly resources, and properly cite any references according to APA standards.