Updated Information on Parties

Gallup has new data on state-level party identification:

In total, 23 states plus the District of Columbia can be classified as solidly Democratic, with a 10 percentage-point or greater advantage in party affiliation in favor of the Democrats. This includes most of the Northeast and mid-Atlantic regions, most of the Great Lakes region, and the Pacific Coast.

Another 10 states can be considered Democratic leaning, in which the state's Democratic supporters outnumber Republican supporters by at least 5 percentage points but less than 10 points. These are Missouri, Kentucky, North Carolina, Florida, New Hampshire, Virginia, Colorado, Nevada, Indiana, and Tennessee.

Four states are solidly Republican, with a better than 10-point advantage in Republican affiliation -- Wyoming, Utah, Alaska, and Idaho. Alabama qualifies as the lone Republican-leaning state, with a 6-point advantage in Republican affiliation.

That leaves 12 states that are competitive, with less than a 5-point advantage for either party. Among these 13 states, 6 tilt in a Republican direction: Montana, Nebraska, Mississippi, Texas, North Dakota, and Kansas. Six tilt toward the Democratic Party: Georgia, South Dakota, Louisiana, Arizona, Oklahoma, and South Carolina.