Accidentally aired on Hulu a month early as it was swapped with the newest episode that aired the day prior.
When Chief knocks on senators' doors, they are all real-life senator names turned into animal puns, appearing as anthropomorphic versions of those animals. In order they are Birdie Sanders (bird), Lizardy Graham (lizard), Amy Cobrachar (cobra), Chuck Shihtzumer (shih tzu), and Krysten Squidema (squid). They are references to, respectively, Bernie Sanders, Lindsey Graham, Amy Klobuchar, Chuck Schumer, and Kyrsten Sinema (though the animators misspelled her first name).