On February 8, 2022, Eric Lander would have been a star presenter at a hearing at House Energy & Commerce about ARPA-H (my blog and links here). Lander is described as Biden's top science advisor. Wikipedia here.
At 9 pm the evening before, stories began running that Lander has resigned in the wake of allegations of abuse and harassment.
Lander holds a PhD in mathematics (1980) but is best known for his work as a geneticist.