Donald Trump bombarded tweets on Republicans asking them not to give up their fight and vote again on the healthcare bill.

Republican Senators John McCain, Lisa Murkowski and Susan Collins joined Democrats to oppose a "skinny repeal" of Obamacare early Friday morning in a major setback to Trump and the Republicans' congressional agenda.

US President Donald Trump has declared Obamacare "essentially dead" after the Republican healthcare bill was narrowly passed by the House of Representatives.

President Donald Trump on Sunday said that Republicans are continuing to discuss how to replace the healthcare reform approved in 2010 by then-President Barack Obama, media reports said.

US President Donald Trump on Sunday blamed Republican lawmakers from the ultraconservative Freedom Caucus for the failure of a Republican healthcare plan to replace former President Barack Obama's Affordable Care Act, after blaming Democrats for the loss on Friday.

Trump said that the GOP proposal will push health insurance costs "down, down, down," adding that "more competition and less regulation will finally bring down the cost of care" within one or two years.

The Republican proposal to overhaul health care in the US could cause as many as 24 million people to lose their coverage over the next nine years, the Congressional Budget Office said.