Wisconsin Gov. Scott Walker said Friday that ordinary Americans are tired of the heavy hand of Washington and are yearning for elected leaders to take a fresh bottom-up approach to governance that empowers states and localities. Mr. Walkers message coincided with the news that Mitt Romney was taking a pass on a third White House bid setting the stage for a royal rumble over the fundraisers and high-dollar donors who had been waiting to see what the former Massachusetts governor would do.