After the resounding defeat of Rep. Earl Hilliard (D-Ala.) on Tuesday marked the end to a contest that strained relations between black and Jewish Democrats, observers said the same tensions are all but certain to erupt in other races in this cycle. As some members of the Congressional Black Caucus Wednesday began reaching out to Artur Davis, who defeated Hilliard by a solid 56 percent to 44 percent margin in a Democratic runoff, political operatives wondered aloud how Hilliard's demise might impact a Democratic primary in neighboring Georgia.Even before Tuesday's runoff, some had sought to draw parallels between the Hilliard-Davis...