In California, I do sometimes see Bernie bumper stickers but I have not seen EVEN ONE TIME a bumper sticker backing Hillary.
Not a single time.
Not a single time.
I'm in CA also, haven't seen any Hillary bumper stickers that I can recall (I did see one in a car window), but have seen Hillary yard signs, and saw a few twentysomething women on public transit today carrying Hillary yard signs.
I've seen plenty of Bernie bumper stickers, a few buttons being worn, some signs in windows, a yard sign or two.
There is way too many Bernie stickers on cars in the Bay area. I’ve also seen a few “Ready for Hillary” stickers on cars owned by morons in LA area. California is a cockroach paradise.