The results are revealing, even breathtaking.

The map of the Senate races shows Republicans leading over almost all the landmass of America. Democrats are ahead in the three West Coast states and Hawaii (though not by much in California and Washington) and by 1 point in Nevada. They’re also ahead in four states along the Atlantic Coast — Maryland, Delaware, New York, Connecticut — plus Vermont.

Republicans lead in all the other Senate races, from Philadelphia to Phoenix and Boca Raton to Boise. True, their candidate leads by only 1 point in Barack Obama’s home state of Illinois. And they’ve got narrow leads in some mountain states (West Virginia, Colorado, Kentucky)…

Extrapolating from the 2008 election results, some Democrats foresaw a 40-year period of Democratic dominance. It turned out to last about 40 weeks, as Republicans passed Democrats in polls on the popular vote for the House in August 2009.