_____ is aprocess in which the popular support for and relative strength of the political parties shift, and the parties are reestablished with different coalitions of supporters.

On the lowest tier of the federal judiciary are the __________

a. state courts b. trial courts c. circuit courts d. district courts

The inability to compromise and enact legislation driven by sharp polarization is known as ______.

a. gridlock b. polarization c. partisanship d. front-loading