President Obama and Democratic Senatorial candidates swept statewide elections in the following six states with total margins (Democratic percent minus Republican percent) of 4.6% and 8.5%, respectively.
In the House of Representatives, Republicans hold a 235-200 edge, for a 35 vote margin. In these six states, Republicans hold a 68-35 edge, for a 33 vote margin. So these six states essentially constitute the Republican majority in the House.
State Obama Margin Senate Margin House Democrats House Republicans
Florida 1.9% 13.0% 10 17
Michigan 9.5% 20.8% 5 9
Ohio 1.9% 5.2% 4 12
Pennsylvania 6.8% 8.9% 10 17
Virginia 3.0% 5.0% 3 8
Wisconsin 6.7% 5.6% 3 5
Total 4.6% 8.5% 35 68
These six states are where President Obama, and those who support him on the Fiscal Cliff, should focus their energy on garnering Republican votes.