Wellness influencer Dr. Casey Means' nomination to be U.S. surgeon general is stalled a month after senators of both major political parties grilled her on vaccines and other health topics during a tense confirmation hearing, deepening doubts about her ability to secure the votes she needs for the role. The nomination has languished despite ongoing efforts from the White House and Make America Healthy Again activists to convince lawmakers to carry it forward, revealing how intractable rifts over health policy can be even when Congress has shown deference to President Donald Trump's agenda. Means, a 38-year-old Stanford-educated physician who became...