Hurricane Helene bears down on Florida with potential for big storm surge and tornadoes; Six injured in explosion at California courthouse; Israeli army tells troops to prepare for ground assault in Lebanon; and more on tonight's broadcast.

More than 40 reported killed as Helene causes wide destruction and flooding; Harris makes first trip to U.S. Southern Border in three years; U.S. charges three Iranian operatives with hacking into Trump campaign; and more on tonight's broadcast.