This post below stolen from Willisms - his entire piece is here:
Voting With Their Feet-
When it comes to domestic migration (Americans moving from one part of America to another), not all states are created equal. On April 20, the United States Census Bureau released its latest current population report (which has lots of neat maps, if you are interested), detailing which states gained population at the expense of others, and vice-versa (.pdf):
Generally, people are leaving states that John Kerry won in 2004 in favor of states that George W. Bush won in 2004. Again, this isn't immigration from other countries, or even birthrate-based population changes. This is strictly a measure of Americans moving from blue states to red states, from blue counties to red counties, from blue cities to red cities.
Policies matter.
Pro-growth policies, not surprisingly, produce growth.
Indeed, the counties with the most outmigration from 2000-2004 tended to be left-leaning counties (.pdf):
It's clear that people are leaving Democrat-dominated areas to escape tyranny (of taxes, of weird rules and regulations, of higher crime rates, of the higher cost of living, of failing schools, etc.), to find opportunity elsewhere.