received backlash for a controversial joke he tweeted on the Fourth of July.
"Happy white peoples independence day the slaves weren't free but I'm sure they enjoyed the fireworks," Rock .
Blogger Jeff Schreiber responded to Rock, , "Slavery existed for 2000yrs before America. We eradicated it in 100. We now have a black POTUS."Other Links From TVGuide.com Chris RockDon Cheadle