Exit polls of Michigan Republican primary voters show that former Pennsylvania Sen. Rick Santorum won more votes from blue-collar conservatives, while former Massachusetts Gov. Mitt Romney took more votes among those in the upper income brackets. Numbers from CNN show that the two men nearly split lower-income voters (those with family incomes less than $30,000), but Santorum won those making between $30,000 and $50,000 by 8 points, and those with family incomes between $50,000 and $100,000 by 3 points, a group that represented a third of those polled.
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=153097