The left was silent when Obama dropped more bombs on more countries than any president in history. I don't think Kamala is campaigning with Liz Cheney because it helps with popular support, it's to send a signal to the military industrial complex that she will do their bidding. 
Discussion
Yeah, that's a good point. I was quite surprised to see how much support Israel gets from the right though. I'll be keenly observing from the sidelines.