States don't always produce the best ideas. Washington doesn't always produce bad ideas. Let's commit to supporting good ideas, no matter where they originate. Gov. Scott Walker is pushing for a theory of governance that suits his run for the presidency -- a “states-know-best” approach. Employing a theme often used by Republican governors eyeing the White House, Walker stressed that the best ideas often come from the states -- and implicitly, from the people with experience running them -- rather than D.C. “What I see in the states and from people in this country outside of Washington is a craving for something new, something fresh, something dynamic, instead of the top-down, government-knows-best approach that we’ve seen in Washington,” Walker said. Walker also made good use of a line that people familiar with political history in Wisconsin will recall: In a speech in Washington, D.C., Friday morning, Gov. Scott Walker took a spin on a historic political line that...