Going to need to see some facts to back that statement up because I think it's wrong. Don't forget to talk about Atlanta, Portland, Seattle, Minneapolis....all run by democrats.
Just looked this up. It's an older article but relevant to the start of the riots.
https://www.nj.com/news/2020/05/thes...yds-death.html
Here are all the cities listed in this article and the political affiliation of the mayor
Atlanta D
Bakersfield R
Boston D
Chicago D
Columbus D
Dallas D
Des Moines D
Denver D
Detroit D
DC D
Houston D
Los Angeles D
Louisville D
Memphis D
Minneapolis D
New York D
Phoenix D
Portland D
Sacramento D
San Jose D