Actually I submitted that one well over a year ago when Biden was pitching his "Build Broke Better". I wasn't sure if he just grabbed 6, 6 and 6 out of the air or if it was by design. I also made this Jomen one about the same time. :-)
Liz Cheney was counted with the Dems in all their efforts, so she effectively is a Democrat. This is very similar to how Joe Manchin voted and worked with Republicans most of the time, so Democrats counted him as Republican in effect.