COVID-19 deaths and cases in the U.S. have climbed back to where they were over the winter, wiping out months of progress and potentially bolstering President Joe Biden’s case for sweeping new vaccination requirements. (AP Photo/Matt Rourke, File) COVID-19 deaths and cases in the U.S. have climbed back to levels not seen since last winter, erasing months of progress and potentially bolstering President Joe Biden’s argument for his sweeping new vaccination requirements. The cases — driven by the delta variant combined with resistance among some Americans to getting the vaccine — are concentrated mostly in the South. While one-time hot spots like Florida and Louisiana are improving, infection rates are soaring in Kentucky, Georgia and Tennessee, […]