Three key Bush administration officials promised governors yesterday that they would work to discourage urban sprawl, renew urban communities, and invest in public transportation. Speaking at the National Governors Association, the heads of the U.S. EPA, Housing and Urban Development Department, and Transportation Department said that President Bush’s budget, to be unveiled tonight, will include significant money to fund “smart growth” policies. Smart growth seems to mean smart politics nowadays — according to a study by the Brookings Institute, voters across the country weighed in on 553 growth-related ballot measures last November.