Public Policy Polling reports:

When we polled Colorado in early March Michael Bennet and Jane Norton were tied. Last week we found Bennet with a 3 point lead. One of the biggest reasons for that shift? Bennet went from leading Norton by 12 points with Hispanic voters to a 21 point advantage. That large shift in a Democratic direction among Hispanics mirrors what we saw in our Arizona Senate polling last month- Rodney Glassman went from trailing John McCain by 17 points with them in September to now holding a 17 point lead.

This has always been Democrats' belief about immigration politics: That among the voters for whom this is a single, motivating issue, whites may get more attention, but Hispanics are more numerous. Numbers like this would be a huge problem for Steve Poizner in California, should he get the nomination.

We'll see this fall.