RENO —First lady Michelle Obama told an enthusiastic crowd Wednesday that if her husband doesn’t win a second term as president, all the progress he has made in the past four years would be lost.“Are we going to turn around and go back to that same policy that brought us to the brink of collapse? All that hard work, all the progress we’ve made, it’s all on the line,” she said. The first lady, speaking for 30 minutes to about 3,800 supporters on the tree-lined quad at the University of Nevada, Reno, said President Barack Obama’s accomplishments include health care, …