Again, pick up a dictionary. Campaigning together doesn't mean that they have to be seen together. It can be Dick Cheney doing public interviews saying how he's voting for Harris, while Harris is praising him saying:
My favorite is the lady standing behind her while she calls Dick Cheney a leader who is well respected with wide eyes like "Kamala, why are you so stupid to say that and do it in front of me?!?"
I'm not voting for Jill Stein. I'm saying you should provide actual evidence that she is a Russian agent if you have it, otherwise you should stop making things up if you want to help your own party.