Republicans still can’t craft healthcare plan that won’t drop coverage for tens of millions

Latest effort on brink of collapse for lack of support after CBO predicts repeal-and-replace plan would see 22 million lose insurance but cut deficit by $420bn

The latest effort by Senate Republicans to revive their plan to repeal Barack Obama’s Affordable Care Act (ACA) was teetering on the brink of collapse again as a new prediction said it would mean 22 million people losing their health insurance by 2026.

Related: Who are the 'dopes' that can't pass a replacement healthcar...