The random sample survey of 604 D.C. residents was taken between August 14 and 17 shortly after Trump signed the executive order. It indicates some 65 percent of residents do not believe the presence of FBI agents and uniformed National Guard troops from an increasing number of states makes the city safer.

Eight of 10 residents surveyed oppose Trump’s executive order to federalize law enforcement in the city. Seven in 10 oppose it “strongly.”

Source.

I’m not sure why they thought a DC jury would ever convict, given that even a DC grand jury (which hears only the prosecutor’s side) didn’t indict.