WATCH: Michael Eric Dyson rains hellfire on Trump during impassioned MLK speech
Professor Michael Eric Dyson of Georgetown University

Professor Michael Eric Dyson of Georgetown University blasted President Donald Trump and the Republican Party during an emotional tribute to the Rev. Dr. Martin Luther King Jr. on the fiftieth anniversary of his assassination in Memphis, Tennessee.

Prof. Dyson is the author of the books April 4, 1968: Martin Luther King's Death and How it Changed America (2008) and I May Not Get There with You: The True Martin Luther King, Jr. (2000).

"And now we stand today in the midst of a culture where a man gets up every morning at 5:30 a.m. to tweet," Prof. Dyson observed.

"He talks about sh*thole countries, but we know where the sh*thole is -- beneath his nose and above his chin," he continued. "We must speak out against a president who refuses to acknowledge the humanity of the honorable people of this nation."

The three-time NAACP Image Award winner had harsh words for the Republican Party members fighting against racial justice in America.

"It's the right-wing Republicans who are out here trying to destroy the legacy of Martin Luther King," Prof. Dyson concluded.