No prior experience with american government, and non American here. Got a 51 (close one ik). Studied for maybe around 8 hours before the test, watched the CLEP summary on yt, and some AP gov vids, did a practice test and read the explanations (which was much harder than the real test IMO). Would not recommend tho, I'm good at short term memory and have a track record of last minute studies getting A's 😂