Why do so many evangelical Christians support former President Donald Trump despite his decades of documented ungodly behavior?
An in-depth report from The Economist shows that it has a simple explanation: They believe that God personally appointed him to rule the United States.
In fact, the report cites a survey conducted by Denison University political scientist Paul Djupe that around 30 percent of Americans believe Trump "was anointed by God to become president."
This article has more detailed information on the surveys conducted. It seems to be about a third of US adults.
https://bigthink.com/the-present/was-trump-anointed-by-god/
Interestingly, while skewed heavily towards Republicans, some Democrats also hold this position and a much smaller percentage overall believe he was selected because of his policies.