Lawrence O'Donnell suggested the Ku Klux Klan represented the views of "millions of Trump voters" Tuesday night on his MSNBC show The Last Word.

The widely despised, extremist white supremacist organization endorsed Donald Trump in its newspaper The Crusader, finding solace in his famous "Make America Great Again" slogan and proclaiming the U.S. was founded as a "white Christian republic." The Trump campaign denounced the endorsement, calling the KKK publication "repulsive" and saying "their views do not represent the tens of millions of Americans who are uniting behind our campaign."

"And I'm sure that's true, that they don't represent the view of tens of millions of Donald Trump's voters, but they may very well represent the view of millions of Donald Trump's voters," O'Donnell said to Washington Post columnist Eugene Robinson.

"Right," guest Robinson said. "I think we know by now where white supremacists are going in this election … They're going for Donald Trump."

Robinson added he was glad the campaign condemned the KKK.

Trump has often been accused of stoking racist resentments in America with his presidential campaign. Hillary Clinton gave a speech in August tying Trump to the so-called "alt-right," a broad term for fringe, right-wing ideologies often at odds with establishment Republicans.