President Barack Obama vowed to make job creation his top priority in 2010, in a bid to restore America’s faith in his change crusade after a first year in office soured by economic misery. In his debut State of the Union address, Obama vowed to battle a host of “big and difficult” challenges which dragged down his administration and demanded unity from Congress to pull the United States out of the mire. “I have never been more hopeful about America’s future than I am tonight.