Millions of Americans are bracing for soaring health care costs after the US Senate on Thursday rejected rival Republican and Democratic plans to avert the expiry of key insurance subsidies -- a fight set to dominate next year's midterm elections.

President Donald Trump has remained largely disengaged from Capitol Hill negotiations, according to lawmakers in both parties, reluctant to spearhead a major health care push and declining to endorse any credible proposal to address the crisis.

Originally published on doc.afp.com, part of the BLOX Digital Content Exchange.