One hint – it isn't the GOP.

Democrats now control the majority of the nation's wealthiest congressional jurisdictions. More than half of the wealthiest households are concentrated in the 18 states where Democrats control both Senate seats.

This new political demography holds true in the House of Representatives, where the leadership of each party hails from different worlds. Nancy Pelosi, Democratic leader of the House of Representatives, represents one of America's wealthiest regions. Her San Francisco district has more than 43,700 high-end households. Fewer than 7,000 households in the western Ohio district of House Republican leader John Boehner enjoy this level of affluence.

The next rung of House leadership shows the same pattern. Democratic majority leader Steny Hoyer's district is home to the booming suburban communities between Washington, DC, and Annapolis. It boasts almost 19,000 wealthy households and a median income topping $62,000. Mr Hoyer's counterpart, minority whip Roy Blunt, hails from a rural Missouri district that has only 5,200 wealthy households and whose median income is only $33,000.

Income disparity - to use the class warrior's favourite term - is greatest among the districts of lawmakers that lead each party's campaign arm. Maryland senator Chris Van Hollen chairs the Democratic congressional campaign committee. With more than 36,000 prosperous households and a median income of nearly $70,000, his suburban Washington district even out-sparkles Ms Pelosi's. In contrast, fewer than 5,000 such wealthy households are found in the largely rural district of his Republican counterpart, Tom Cole from Oklahoma. The median income there is only $35,500.

Of course, this has also played out for years in terms of the size of campaign donations. The average donor to the Democrats gives a much larger donation than the average donor to the Republican Party. At one time, I believe the difference was something like 500% or more. So forget the meme that the GOP represents the rich and the Donks represent the poor and middle class – the numbers don't lie.