You can use any of the couple dosen similar studies that all return similar numbers. Overwhelmingly negative coverage of Trump is a norm, has been a norm, and will likely persist as a norm.
Here's historic evidence from Pew:
https://www.pewresearch.org/jo...
Note the similar numbers. Only 5% positive for Trump.
This is really easy to individually comprehend too.
"What are five bad things Trump did. Are they talked about across mainstream right now and widely known on all sides of the spectrum?"
"What are five good things Trump did. Are they talked about across mainstream right now and widely known on all sides of the spectrum?"