In an Australian news broadcast that seems to have resonated with Americans, a political journalist delivered a scathing evaluation of President Trump’s performance last week at the Group of 20 summit meeting in Hamburg, Germany.

The journalist, Chris Uhlmann, said in a segment originally broadcast on the program “Insiders,” that Mr. Trump was an “uneasy, lonely, awkward figure” at the meeting and that the president “has no desire and no capacity to lead the world.”

The video immediately took hold on social media, and by Sunday morning had been viewed more than a million times on Twitter and Facebook — further emphasizing how viral videos, once reserved for cute kitties and humorous mishaps, have become increasingly political, and that interest in these gatherings of world leaders is no longer just for policy wonks.