A breakdown of the key races that will decide U.S. Senate’s future

Control of the U.S. Senate is up for grabs Nov. 3. The Republicans now have 53 seats, but Democratic challengers have a shot in several states, including North Carolina. So how Congress handles a number of issues — including the tax structure, the coronavirus, health care and climate change — is at stake. Here’s a breakdown of the key races: A tense battle took a stunning turn when news surfaced that Democratic nominee Cal Cunningham sent texts of a sexual nature to a woman in California. Cunningham,…