[alt text: a screenshot of a tweet by @salgentile on Twitter, posted on 08/06/24. The tweet says, "Tim Walz will expand free school lunches, raise the minimum wage, make it easier to unionize, fix your carborator, replace the old wiring in your basement, spray that wasp's nest under the deck, install a new spring for your garage door, and put a new chain on your lawnmower".]
It used to be common for lawnmowers to use chains. Either OOP isn't very mechanically inclined OR they are and they're just including a subtle dig to Tim Walz being yet another old guy (ignoring him being a fetus in comparison)