Second choice voting

In my Bernie sanders fb group yesterday we where talking about the possibility that Bernie won't be the candidate. Many people are saying if he doesn't they won't be voting for Hillary they'll be writing him in (which in reality a write in is worth about as much as the paper I wiped my butt with this morning)  I think it's nuts considering trump could be our president. Even tho I can't stand Hillary I'll support WHOEVER goes against the Republican Party this year because it's full of nut jobs. IMO  no progress under Hillary is better than negative progress under any of them. I'm also wondering for the Hillary supporters are you willing to vote for Bernie if and when the time comes? The best thing we can do for our country right now is stick together and make sure the republicans don't get in office. That said ...Bernie 2016 lol.