McCain sinks Obamacare repeal again

US Senator John McCain has said he cannot support his fellow Republicans' latest effort to repeal Obamacare, dealing it a potentially fatal blow, reports BBC.

The Arizona senator, who is battling brain cancer, said he "cannot in good conscience" vote for the new plan, which President Donald Trump backs.

McCain said it was wrong to pass such far-reaching legislation without input from the Democrats. It is the second time he has thwarted his party leadership on the issue.