Barack Obama has won the endorsement of another Republican.
Former Massachusetts Gov. William Weld cites Obama's steady leadership, good judgment and ability to unify Democrats, Republicans and independents.
In a statement, Weld calls the Democratic nominee a "once-in-a-lifetime candidate who will transform" politics and "restore America's standing in the world."
Weld was governor of Massachusetts in the 1990s. Last year he campaigned for another former Massachusetts governor, Mitt Romney, as he sought the GOP presidential nomination.