Of course, us conservatives knew that already.
Rich people vote for Democrats...it's common knowledge, now we have statistical proof.
According to study by the Heritage Foundation, more than half of the wealthiest households in America are concentrated in the 18 states where Dems hold both Senate seats. Also, out the wealthiest 1/3rd of Congressional districts, 58% of those seats are held by Democrats.
The measurement of wealth was determined by the number of individuals in each district or state that are earning over $100,000/year, and joint-filing married couples earning over $200,000/year.
This is definitely contrary to constant harping of Democrats that the GOP is the "party of the rich". This same study showed that the majority of Republicans in Congress come from areas or states that are largely middle-class.