Contentious contract negotiations with union workers also threaten Kaiser Permanente's longstanding labor-management partnership.

Large national insurers could win big if Democrats' proposal passes Congress, but regional insurers are worried about the impact to their business.

Allen, a longtime healthcare executive known for building morale at financially troubled healthcare organizations, died at the age of 80 on Sunday.

The twin votes represented a heavy blow to the Biden administration's sweeping effort to shore up nearly all Americans' protection amid the spread of the highly contagious delta variant.