Other carmakers are also likely to ramp up production, a move that will help the wider economy.
Jefferson County risks becoming the largest local-government bankruptcy in recent US history.
Democrats say such a measure could have helped avert the financial crisis. Republicans and big business call it a bureaucratic power grab.
Engineers designing NASA's next moon rocket defended their work to a committee appointed by President Barack Obama.
But the Senate panel vote is nearly party-line, with just one Republican approving her nomination.
The Senate Judiciary Committee is now scheduled to vote on the Supreme Court nominee on July 28. She is expected to win approval both there and in the full Senate.