Report says that more than $45 billion of the estimate is either in error or undocumented. The State Auditor's Office this morning released a report challenging the validity of almost half of a purported $86 billion shortfall in Texas transportation funding over the next generation, and cautioning that the gap estimate "may not be reliable for making policy or funding decisions." That $86 billion figure has been cited repeatedly by Texas Department of Transportation officials and some legislators as a major reason for the state's increasing need for new toll roads. The number is a compilation of estimates from local...