How John McCain got his revenge on Donald Trump with Obamacare repeal

John McCain dramatically helped to defeat Donald Trump's healthcare bill three days after the President hailed him as a "brave American hero" for returning to the US Senate to vote.It came after Mr McCain twice voted earlier this week to push forward the controversial bill, which critics had warned could lead to the deaths of 20,000 more people, as up to 22 million people lose health insurance coverage.