The party that identifies itself as home to labor unions and middle-class families might be in for a wake-up call. A recent report from The Heritage Foundation says that the Democratic Party is the new "party of the rich."

A review of Internal Revenue Service data conducted by Michael Franc, vice president of government relations at Heritage — a conservative think-tank — found that Democrats control the majority of the country's wealthiest congressional jurisdictions, and that more than half of the most affluent households are located in the 18 states where Democrats control both Senate seats.

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The review of income data also found that some of the Democratic Party's key leaders represent far more affluent constituents than their GOP counterparts.

Franc found that House Speaker Nancy Pelosi of California has more than 43,700 high-end households in her district; House Majority Leader Steny Hoyer of Maryland has almost 19,000. By contrast, House Minority Leader John Boehner's Ohio district has fewer than 7,000 such homes.

The Heritage Foundation looked at two categories of taxpayers for the review: singe filers with income above $100,000 and married filers with income above $200,000.