Explain whether the implementation of U.S. Immigration Policy reflects the top-down, bottom-up, or synthesis approach.

Based on the Birkland readings, compose a 350-to 550-word response to the following:

Explain whether the implementation of U.S. Immigration Policy reflects the top-down, bottom-up, or synthesis approach.
Do you think this approach is appropriate? Why or why not?
What approach SHOULD Immigration Policy reflect?