A new round of stadium construction is underway for professional sports teams across the U.S., and taxpayers will be helping to pay the multibillion-dollar tab. The wave of construction has seen teams chasing both repairs and luxurious additions. Some teams have sought new public funding for the projects — with mixed support — even while debt from the last round of renovations a couple decades ago is still being paid off. This year alone, The Associated Press tallied about a dozen stadium projects that were unveiled or already underway for Major League Baseball and National Football League franchises. That doesn’t...