Far from seeing the police's role as one to protect and serve, a majority of Black Americans now say that calling the police or 911 often does more harm than good.

And that distrust is backed by personal experience. Black and Hispanic Americans are significantly more likely than white or Asian Americans to encounter threatening situations at traffic stops, like guns drawn or extra officers called in.

More results from the poll will be released later today in the latest of Axios' "Hard Truths" series of deep dives on systemic racism, this one focusing on the criminal justice system.

By the numbers: 68% of Black respondents said police treatment of Black Americans has gotten worse in the past year, with just 6% saying it has improved.

42% of Hispanic respondents and 37% of Asian respondents agreed that police treatment of Black Americans has become worse.

By contrast, just 25% of white Americans agreed, with 61% saying police treatment of Black Americans had neither improved nor worsened in the last year.

Likewise, 72% of Black Americans said police shootings of Black or brown youths have gotten worse in the last year -- a view that was shared by 49% of Hispanic Americans, and comes after the deaths of 16-year-old Ma'Khia Bryant and 13-year-old Adam Toledo in recent weeks.

32% of white respondents and 44% of Asian respondents agreed.

Most Americans still have a positive view of police and law enforcement. But that's not true of Black Americans. Just four out of 10 said they have favorable views of police and law enforcement, while 57% said they have unfavorable views.