President Donald Trump’s critics have been champing at the bit for any signs of weakness during his first sit-down with Vladimir Putin – and sure enough, all it took was Trump greeting the Russian leader with a handshake and pat on the back.

As the two leaders met Friday for their highly anticipated first face-to-face meeting, the men shook hands, and Trump patted Putin’s arm. Trump later patted Putin on the back.

And Twitter erupted.