Between Al Sharpton and Spike Lee is Representative Charles Barron. He is a former Black Panther. The Panthers were Maoist revolutionaries/domestic terrorists.
Source: NY-1 video
http://www.ny1.com/content/news_beats/politics/94290/protests-continue-despite-post-s-apology-over-cartoon/Default.aspx?ap=1&Flash
"Charles Barron is currently a Democratic New York City Councilmember. A former member of the Black Panthers, he is campaigning for Brooklyn Borough President. He contemplated running for mayor of New York City in the 2005 election, and in 2006 was a primary candidate for a seat in the U.S. Congress."
http://en.wikipedia.org/wiki/Charles_Barron