According to
political scientists, Donald Trump has replaced James Buchanan as
the worst POTUS ever, and BAMZ!!!! is one position higher at number 8 than mush-brained Reagan at number 9.
Sounds about right.
After all, 63M idiots thought that a narcissistic mentally ill reality TV star with no government experience or knowledge, 6 business bankruptcies, five kids from 3 different women, 26 charges of sexual assault, numerous adulterous affairs, over 4,000 lawsuits against him would make a fine POTUS in November 2016.

Obviously, public opinion isn't worth much.

Professionals like political scientists should make these lists.

I don't think that many thought Trump would make a great president. If you look at the numbers, it was who the major parties nominate that a majority of Americans couldn't stand.
You had 56% of all Americans who viewed Hillary negatively and didn't want her to become president. Trump was worst, 60% didn't want him to become president along with 25% of all Americans who viewed both nominated candidates, negatives and didn't want neither one. Questions 10 and 11.
https://d25d2506sfb94s.cloudfront.net/cumulus_uploads/document/l37rosbwjp/econTabReport_lv.pdfand
https://news.gallup.com/opinion/pol...ans-dislike-presidential-candidates.aspxWe have Trump due to the choices, decisions and actions taken by both major parties in 2016. When you have only 36% of all Americans liking and wanting one candidate vs 38% who like and wanted the other, those are bum choices. There was a whole lot of voting for the candidate one least wanted to lose, not win, but least wanted to lose. The choices sucked for most Americans in 2016. For a majority of Americans.
You have to put 2016 in its proper context and perspective to fully understand why Trump won. I know, it's darn near impossible to get a Hillary supporter to recognize the fact she was as disliked and as unwanted as Trump was. In our entire history, we never had a candidate with less than a 40% favorable rating, then viola, we get two in 2016. In fact there has been only 3 candidates in our history that has had a less than 50% favorable rating. 1964 Barry Goldwater at 43%, 2016 Hillary Clinton at 38% and Donald Trump at 36%. Another fact, only two candidates in our history has ever had an over 50% unfavorable mark. Trump at 60%, Hillary Clinton at 56%. Even Barry Goldwater at 47% didn't reach 50%.
You can rant and rave all you want about Trump. But if the Democrats had nominate a decent candidate, one that wasn't so disliked by America as a whole, we would never of had Trump. It wasn't that the Democrats weren't given advance warning about Hillary Clinton. They were. Back in Feb 2016, 56% of all Americans stated they wanted the Democrats to nominate someone other than Hillary Clinton. Of course the Democrats ignored all Americans, that was their right. Democrats choose their nominee, not all of America. But all of America choose who will become president. Something lost on the Democrats in 2016. Perhaps they didn't realize or forgot it was all of America who would choose the next president, not just Democrats.
Luckily, it seems the Democrats have learned that valuable lesson from 2016.