By Nicholas Riccardi | The Associated Press
On the political map of the Southwest, Arizona stands out.
Colorado, Nevada and New Mexico are independent-minded states that once leaned Republican but are trending Democratic, partly because of increasing numbers of Hispanic voters alienated from the GOP by its tough stance on illegal immigration.
California, a GOP bastion for decades, is now solidly Democratic and the ultimate example of the dangers for Republicans on this issue.
Nowhere is a harder line on immigration taken than in Arizona, where Republicans have a lock on statewide offices and dominate the Legislature.
In November, Democrats picked up two congressional seats, but Republican presidential nominee Mitt Romney easily won the state with a slightly better margin against President Barack Obama than Arizona Sen. John McCain posted in the 2008 White House contest.
That record has led advocates of tighter immigration restrictions to point to Arizona as a model for how Republicans can maintain their tough stance on the issue and still win elections.