The folks at First Read made the following interesting catch earlier in the week:

As things stand right now after Saturday's elections in Louisiana and the resolution of that Ohio congressional race, Democrats will hold a 257-178 advantage over Republicans in the next Congress, which means that Republicans will need to pick up 40 seats in the 2010 midterms to take back Congress. Here's another interesting finding: Before the election, per NBC's Abby Livingston, Democrats held a majority of the congressional delegations in 27 states; they now have majorities in 33 states. The changes: Michigan, Nevada, New Mexico, Ohio, and Virginia went from GOP to Dem; Arizona went from even to Dem; Idaho went from GOP to even; and Kansas went from even to GOP. All the state congressional delegations that went from GOP to Dem were in battleground states (MI, NV, NM, OH, VA), proving that where the Obama operation was, Dems made big gains down the ballot.

When we last looked at the numbers a month ago, the Democrats were leading in the nationwide popular vote for the House of Representatives by a 58,444,601 vote (52.80 percent) to 49,165,306 vote (44.42 percent) margin -- about a 9.3 million vote spread, or 8.4 percentage points. That differential has only grown as more votes have been counted.

Democrats: 62,907,110 votes (52.81 percent)
Republicans: 51,445,446 votes (43.19 percent)

As of the current count, then, House Democrats received 11.5 million more votes than House Republicans, good enough for a 9.6 percentage win. Throw on top of it the fact that the Democrats now hold a majority of US House seats in fully two-thirds of states, and the Democrats' accomplishment on November 4 looks that much more impressive in retrospect.