-Before the RNC Matthews accused Newt Gingrich of being racist for calling Obama the "food-stamp President".
-He accused conservatives of racism by referring to Obama's corrupt Chicago connections, because some black people happen to live in Chicago.
-He accused Ron Paul of being racist because Paul defended property rights and freedom of association, saying that property owners could turn away anybody they like for any reason they like, even race. Not that he agreed with it, just that it is Constitutional.
-He accused Reince Priebus and the RNC of playing subtle race cards against team Obama to gin up support among white racists.
In short Chris Matthews has run out of reasons to attack republicans and ways of defending Obama, other than race. What a cloying asshole Matthews has become!