Unfortunately there isn't a video of a live performance -- surprising too since it may be their most-famous song. But any version is well-worth it.
Despite what the video say, the song is not "by" the Chad Mitchell Trio, it's written by Michael Brown, who also wrote the wonderful "Ballad of Lizzie Borden," which I posted here a while back. It also surprisingly has a resonance to today, despite having been written 57 years ago in 1962.
One of the first members and early sources of financial support for the very far-right wing John Birch Society was a man named Fred Koch -- who was the father of the right-wing Koch Bros.trying to influence American society ever since. There's also the irony of this far-right group being so dead-set against anything that wasn't deeply conservative, so much so that it linked anything with even a hint of liberalism to its a virulent hatred of communism and socialism -- like so much of today's Republican Party, with the one huge, bitterly-incongruous difference being today's GOP having a love and support of Vladimir Putin thanks to the enabling of Trump. Which is not unrelated to today's news about Trump and Ukraine which could get him impeached.
So, sing along with history...!