Depending on your political leanings, Marco Rubio can be accused of a lot of bad things but going off message is not one of them. He really, really sticks to his point. When Chris Christie said that Rubio was repeating a speech that he had memorized he responded to that by repeating the same speech, sometimes verbatim, three more times.
So of course Robot Rubio became a thing.
Which came to it's natural conclusion with a guy dressing up as a robot and joining Rubio supporters holding up signs.
And that's what led to this video of Robot Rubio being half heartedly attacked by a Rubio supporter until he realized he was caught on camera.