Hmmm...can't edit, but: I just looked at this again, and it's interesting to note that the Kindle version has an A rating and the print version has an F rating, even though they appear to share the same set of reviews.

Scroll down to see the first two entries in the product list here: https://www.fakespot.com/company/donald-j-trump

If you are solely posting just to make a political jab then there are more appropriate places to make such comments that are not Hacker News

Shouldn't it be around 49%?

Or is it just bumped up due to an old electoral algorithm Amazon uses?

Hmmm...