Anti-Trump supporter slugs elderly Trump supporter in the face at a Janesville, Wisconsin rally Tuesday.

The entire event was caught on video.

That anti-Trump protester was screaming profanities at the Trump supporter then smacked him in the face.

Filmmakers Jeremy Segal and Andrew Marcus were at the rally today.

Here is the video captured by derek94gt

(Warning on language)



TRENDING: Obama Statement on Ginsburg Demands GOP Senate Honors Her Dying 'Instructions' and Put Off Vote on Supreme Court Nominee Until New President Sworn In

Ted Cruz will blame this on Donald Trump.