On Friday’s “Morning Joe” MSNBC host Lawrence O’Donnell made a startling admission: “I am a socialist.”

The statement from the regular host of “The Last Word” came as he was chiding contributor Glenn Greenwald from Salon.com for apparently being a liberal hiding behind the word “progressive.”

“I am a socialist. I live to the extreme left, the extreme left of you mere liberals,” he said:

An extended version of the clip shows more of the uncomfortable exchange. It reveals that O’Donnell and Greenwald disagree about why Democrats lost on Tuesday. Greenwald suggests they tried to appear conservative and paid the price, while O’Donnell seems to suggest that the only way liberals and progressives can hold power is if they temper their platforms:

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