Democrat Antonio Delgado has ousted freshman Republican U.S. Rep. John Faso in a swing district in New York's Hudson Valley, the 19th Congressional District.
Delgado, who is black, won Tuesday despite Republican ads that called him as a "big-city liberal" and claimed he denigrated women, police and American values during a brief rap career years ago.
His supporters said Republicans went too far with racially-charged attacks in a district that is 90 percent white.
Delgado is a corporate lawyer and former Rhodes scholar who campaigned on universal access to Medicare, creating jobs and eliminating tax loopholes for the rich.
Faso joined Congress last year. He was previously a state assemblyman.