DACA
They say it's about the Constitution, not immigration.
Local leaders are coming out against their states' governors over deportation relief.
If Rubio's in, deferred action for young undocumented immigrants is out.
WHAT'S HAPPENING
He claims the current licenses could be used for voter fraud or "to purchase explosives."
She had permission to travel, but now her U.S. work authorization is in doubt.
Even with permission to travel in hand, the mother of three U.S.-born children was expelled.
But a new legal challenge is already in the works.
The justices added an unexpected constitutional wrinkle to the case.
After winning in lower courts, the state wants to stay a winner.