who was blanche bruce?
Freebase(0.00 / 0 votes)Rate this definition: Blanche Bruce. Blanche Kelso Bruce was a U.S. politician who represented Mississippi as a Republican in the U.S. Senate from 1875 to 1881 and was the first elected non-white senator to serve a full term. Hiram R. Revels, also of Mississippi, was the first to ever serve in the U.S. Congress, but did not serve a full term.