Rich Lowry has this on Colorado:
Outside the merits of the immigration issue — its costs, its implications for security and national cohesion — the partisan dynamic is clear: Higher levels of Latin American immigration benefit the Democrats, while digging an ever-deeper demographic hole for Republicans. Pro-immigration conservatives fool themselves into believing that being pro-immigration will make it possible for the GOP to convert large numbers of Hispanic voters to their side. This is a party strategy that could have been crafted in Oregon, since it amounts to a kind of partisan assisted suicide.
What does that have to do with Colorado? Read the whole thing.