Pickup trucks and construction equipment crowd the lawn of the Illinois Executive Mansion and the block across the street. Gov. Bruce Rauner and his wife, Diana, have raised the money for the $15 million mansion makeover, which is slated to be complete by the end of the summer. And the governor is eyeing the city-owned block, dubbed the “Y-block” for the YWCA that used to sit there, as an extension of that project.