Charles Blow, liberal columnist for the New York Times, said interpreting Donald Trump's recent speech targeting black voters is like studying excrement.

In an op-ed posted Wednesday night, Blow criticized Trump's overture to black communities as a wasted effort that's out of sync with his entire life's work.

"Like so much of what Trump has said and done," wrote Blow, "this new outreach forces writers like me to conduct scatological studies, framing Trump's actions in their historical and intellectual absurdity."

He added later, "All of black America is looking askance at Donald Trump. He has no credibility with black people, other than the handful of black staffers and surrogates who routinely embarrass themselves in their blind obsequiousness. Trump has demonstrated through a lifetime of words and actions that he is no friend of the black community."

In his speech, delivered Tuesday in Milwaukee after a weekend of violent riots in mostly black areas, Trump defended police officers and said, "Our job is not to make life more comfortable for the rioter, or the robber, or the looter, or the violent disruptor, of which there are many. Our job is to make life more comfortable for the African-American parent who wants their kids to be able to safely — safely — walk the streets and walk to school. Or the senior citizen waiting for a bus. Or the young child walking home from school."

Trump's national support among black voters is in the low single digits, according to most polls, though throughout his campaign he has been endorsed by some prominent black figures, including boxing promoter Don King.