The racist cartoon was allegedly designed by Ben Garrison. It does look as it were something out of The Daily Stormer. I wouldnt put it past a leftist hacker or Deep State operative to have produced the cartoon, or plagiarized it from a white supremacist web site, labeled it Ben Garrison, and planted it on Ron Pauls web site.
It is likely a high tech version of a dirty trick, like the swastika daubings and nooses found every so often, planted by a minority group member or leftist.