I always start with a quick check, comparing the USA with a few specific European countries. I can see that the USA got ranked below the UK, below Sweden, and below Germany. OK, we can disregard this data. Another quick check is to look at the USA by year. If the rating suddenly dropped in 2016, when the people got what they wanted despite heavy opposition from the powerful elite, then the rating is junk.
If you mean the republican party leadership, they wanted Jeb! Or maybe, it could have been Rubio or Kasich. They definitely did not want Cruz or Trump. They kept fighting against the people's choice even after he got in office. Romney is still fighting.
Nevertheless, many people do suspect that he actually got the most votes. One of the actual troubles in the USA is that we do see ballot stuffing. Witnesses saw people filling out ballots after the election in Broward County, FL. It will likely be far worse for 2020. Here are some of the clever ways that it happens: https://nypost.com/2020/08/29/political-insider-explains-vot...
So, not saying the USA is perfect... but the visualization is still clearly biased for political reasons.