“Check Amazon.com.”
no dropoff that i can see; still going strong:
https://www.amazon.com/charts/2017-09-17/mostread/nonfiction/index.html?ref=CHRT_BK_RD_NF_1_DP
https://www.amazon.com/What-Happened-Hillary-Rodham-Clinton/dp/1501175564
if you pull up Amazon.com...you will clearly see that a Tom Brady football book is now the number one bestseller and the Clinton book has dropped to number two!!! Can you imagine a football tome has kicked Ms. Clinton’s butt? And...I like the NE Patriots & Tom Brady. LMAO. I actually believe Amazon.com toyed with the “besatseller” list one way or another. The Clinton book was a flop before it was ever printed. She is now politically dead.