What makes Senator Bernie Sanders a socialist?

So I know that he supports universal healthcare, and more social programs, wants to publicly fund political campaigns, but what else makes him a socialist? If a liberal supports more social program spending, single-payer healthcare and wants to reform campaign spending, does that make him/her a socialist?

 

Socialist is the redistribution of wealth. All the fore mentioned programs are socialistic in nature! If socialist had their way, you'd be working for 10% of your paycheck and the alcoholic bum on the side of the road would make the same amount for doing nothing.

Communism/socialism is a terrible thing!!! When I was a Liberal, I actually believed in this crap!! But now I understand that more taxes will not help a single person in this whole country!!! (except the government!!!)