Milwaukee County Sheriff David Clarke faulted President Obama for endorsing the "lies and propaganda" put out by the Black Lives Matter movement.

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In remarks last week, the president weighed in on criticism of the slogan "black lives matter."

"I think everybody understands all lives matter," Obama said at a White House forum on criminal justice.

"I think the reason that the organizers used the phrase 'Black Lives Matter' was not because they were suggesting nobody else's lives matter. Rather, what they were suggesting was there is a specific problem that's happening in the African-American community that's not happening in other communities.

"And that is a legitimate issue that we've got to address."

Clarke said the facts belie the claims from those on the left, such as filmmaker Quentin Tarantino who appeared this weekend at an anti-police rally in New York.

The sheriff said that from 2009-2012, there were nearly 1,500 deadly use-of-force incidents by police officers. He said 61 percent of those killed were white males, while 32 percent were black males, an almost two-to-one ratio.

Clarke said 93 percent of black murder victims are killed by another African-American, while police officers account for "less than one-tenth of one percent" of black murder victims. 

"The President of the United States lacks the courage to look at the black community and tell them to look in the mirror for the source of their problems," he said.

Trial attorney Eric Guster faulted Clarke for "playing with statistics," arguing that most Black Lives Matter supporters do not want violence against police officers.

Guster said the group is putting forward an important message and their concerns about police officers should be acknowledged.

Clarke said the whole movement is based on the faulty "hands up, don't shoot" narrative that followed the death of Michael Brown in Ferguson, Missouri. 

"I've renamed it Black Lies Matter. ... This whole movement is illegitimate," he said. 

Guster pushed back that a black person is twice as likely to be stopped and "harassed" by a police officer. 

Clarke countered that he has yet to see a "peer-reviewed, empirical study" that shows a pattern of racism by American cops.

Watch the debate above.

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