WASHINGTON – Declaring "I don't quit,'" President Barack Obama fought to recharge his embattled presidency with a State of the Union vow to get jobless millions back to work and to stand on the side of Americans angry at Wall Street greed and Washington bickering. Defiant despite stinging setbacks, he said he would fight on for ambitious overhauls of health care, energy and education. "Change has not come fast enough," Obama acknowledged Wednesday night before a politician-packed House chamber and a TV audience of millions. "As hard as it may be, as uncomfortable and contentious as the debates may be,...