I know everybody else has probably posted lots of things about this on previous threads, but I thought I'd add my 2 cents. I took this exam a few months ago. I don't remember everything the test covered but they did ask a fair bit about some of the landmark Supreme Court cases....Marbury vs. Madison, Plessy v. Fergesson, etc. Be sure you study those. That and the different types of committees.

IC is great on this one---do the questions over and over! It was an excellent help. I also used the Cliffs Quick Review on American Gov't for overview.

Good luck!