Phil Ochs in 1966, 54 years ahead of his time.
A few notes on the jokes in his intro:
Senator Carl Hayden was the oldest senator in the Senate at the time at 89 years old at the time of the recording; and George Murphy was a former song and dance man who had been elected Senator from California in 1965, predating Ronald Reagan who became California governor a year later.
Thanks to YouTuber farmboy10001