Trump-Putin summit a 'low point' in presidential history: John McCain

Senior Republican Senator John McCain called President Donald Trump's joint press conference today with Russian leader Vladimir Putin "disgraceful" and a "low point" for the US presidency.

In some of the harshest criticism yet from members of Trump's party, the veteran lawmaker - a strong critic of the president - called the Helsinki summit a "tragic mistake" in which Trump was "not only unable, but unwilling to stand up to Putin."