Arizona voters are set to decide whether to let local police arrest migrants suspected of illegally entering the state from Mexico, an authority that would encroach on the federal government's power over immigration enforcement but would not take effect immediately, if ever.
If Arizona voters approve Proposition 314, the state would become the latest to test the limits of what local authorities can do to curb illegal immigration. Within the past year, GOP lawmakers in Texas, Iowa and Oklahoma have passed immigration laws. In each case, federal courts have halted the states' efforts to enforce them.
