Kennedy's bid for top US health job may hinge on wary Republican doctor

By Gabriella Borter and Stephanie Kelly WASHINGTON (Reuters) - Robert F. Kennedy Jr.'s confirmation as the top U.S. health official - one of President Donald Trump's most contentious nominations - may hinge on Louisiana Republican Senator Bill Cassidy, a doctor with a history of bucking political pressure who has expressed wariness over Kennedy's anti-vaccine views. Cassidy sits on the Senate