It's really just more proof that the Tea Party isn't the grassroots non-partisan group that they keep saying they are.
In fact, past Republican affiliation is the single strongest predictor of Tea Party support today.
They are overwhelmingly white, but even compared to other white Republicans, they had a low regard for immigrants and blacks long before Barack Obama was president, and they still do.
Hmm...see Sangre's post above. check.
Next to being a Republican, the strongest predictor of being a Tea Party supporter today was a desire, back in 2006, to see religion play a prominent role in politics.
The Tea Party is exactly who we always thought it was - bitter Republicans pushing a social, religious-based agenda.