Union firewall for Democrats?

Hart research polled union and non-union voters in 100 swing congressional districts. Findings are expected in part, and unexpected in part. Union voters provided the firewall for many surviving Democrats, particularly in the Senate races, while white working class voters more dramatically supported Republican candidates (white non-college educated men picked Republicans 67 to 33 percent). The AFL-CIO blog on the survey sounds a note of caution for Republicans. Despite the voting, however, it seems working class voters favored many positions favored by Democrats: (for example, 63 percent against tax cuts for earners of $250,000+, 62 percent against social security privatization, 75 percent against reducing or eliminating the minimum wage).