rob reiner, tweeted this. >> when asked how he wanted to be remembered, carl reiner once replayed, he made a difference, a little, and he made me laugh. thanks for being with us. "all in with chris hayesp next. >>> tonight on a special edition of "all in" -- a nation in the grip of crisis amid a raging pandemic and a national reckoning on race and policing. tonight for the hour, four mayors of four major cities tasked with leading their cities through this critical moment in american history. this is all in america, frontlines of change. good evening from new york, i'm chris hayes. for the next hour, we're going to be talking about the issues of policing and race amidst a crippling pandemic. i'll be joined by mayors from four major cities across the