The Supreme Court on Monday rebuffed the state of Alabama, and gave a win to the Obama administration, by declining to review a lower court ruling that had blocked a controversial part of the state's tough immigration law.

Alabama had asked the high court to review an appeals court decision to stop enforcement of the 'harboring' provision that made it illegal to harbor or transport anyone in the state who had entered the country illegally.

The appeals court had acted in 2012 at the Obama administration's request. The White House had said that Alabama's law was trumped by federal immigration law.