text:  It's Morning Edition from NPR News. I'm Sasha Pfeiffer in Washington, D.C. And I'm A. Martinez in Los Angeles, California. Coming up, Hurricane Beryl shines a light on America's electrical grid after knocking Houston's lights out. But we start this hour with new scrutiny on Vice President Kamala Harris. That's coming as more Democrats, both legislators and donors, call on President Biden to step aside.