Gallup Party ID by State

[pbrower2a]

Democratic ID

Red: Absolute Democratic majority
Orange: Democratic plurality under 50%, margin greater than 5%
White:  Democratic plurality, margin less than 5%
Green: Exact tie
Pale Blue: Republican plurality short of a majority

GOP Identity

Darkest shade: GOP majority in ID (maximum 53% in Utah).
White: DC gives about 12% ID for the GOP.
 
Shades increase from pale blue for 26% (Massachusetts) to 53% (Utah).