I found this button on the ground when Washington State Gov. Evans was running for his second term in 1968.
Comic art historians might be interested to know Gov. Evans, along with State Sen. Gordon Sandison, was an important figure in the creation of The Evergreen State College. TESC is now known as a hotbed of cartoonists. When Gov. Evans stepped down after serving an unprecedented consecutive three terms as Governor, he became the President of Evergreen and it was viewed as a very controversial move at the time.
The editor of the school paper, The Cooper Point Journal, during this turmoil was none other than Matt Groening. And here's a bit of Matt trivia. He's not only a great cartoonist, he's also a great journalist. He could've been an amazing investigative reporter, but as it happened his talents were used to better advantage.
Here's yet another bit of trivia. The Evans administration actually employed me ca. 1976 to conduct phone polling. I got paid per each completed survey. It was a night job conducted by college students mostly. This gig was very educational for me in that I heard the vox populi unfiltered.