To many people, Donald Trump's tweet about CNN was the lowest of the low.
The tweet mocks up an image of Trump brawling with WWE wrestlers back in 2007 to show the US President fighting a man with a CNN logo on his head.
Critics say it encourages violence and intolerance, and lays bare Trump's oafish, lumpen ineptitude. Unsurprisingly, the Reddit user who allegedly first created the video has now apologised for their actions.
But Trump's supporters might reasonably point out that he has been victim of some equally offensive memes, tweets and gifs.
This might seem a childish and pointless argument, but perhaps you should check out the pictures below before making your mind up.
Take a look at the brutal reaction below