NYT discusses redistricting of emerging Hispanic populations in various states.  

excerpt:   Here in Nevada, Democrats, who control the State Legislature, have drawn a new Congressional map that includes a district where Latinos would make up 37 percent of the residents, and two other districts in which Latino residents would make up about a quarter of the population. Under their plan, three of the state’s four districts would be dominated by registered Democrats, while Republicans could keep one.

But Brian Sandoval, the Republican governor, vetoed the Democrats’ plans, arguing that they violated the Voting Rights Act by not establishing a district with a Latino majority even though, the governor said, “such a district can clearly and simply be drawn.”

The state’s Republicans have offered their own plan — one in which Republican residents would control two of the four Congressional seats, and Democrats the other two. In one of the Democratically controlled districts, Latino residents would make up just over 50 percent of the residents — giving them, in essence, their own seat; the other districts would include far fewer Latinos