(USAToday.com) — Big problems. Big achievements. Big costs. Historians say President Obama’s legislative record during a crisis-ridden presidency already puts him in a league with such consequential presidents as Lyndon Johnson and Franklin Roosevelt. But polls show voters aren’t totally on board with his achievements, at least not yet, and the White House acknowledges that his victories have carried huge financial and political costs. “There are always costs in doing big things,” Obama told USA TODAY.