In the trailer you could see them talking about raising taxes for billionaires, which is the leftwing liberal solution to the social question. Socialists would seek to redistribute the means of production to the people, hence abolishing the bourgeoisie, which means there wouldn't be any billionaires.

Quite often people confuse Demsocs with Socdems, which annoys me.

@Commander Kappa  the first thing in the tutorial says they're meant to be challenges faces faced by a hypothetical socialist or social-democratic government in the USA. To me that implies it's bound by things which are realistically possible for a new incoming government who's working with a lot of - but not all powerful - amount of support in congress.

by my understanding, social democracy is a means (historically towards socialism, through progressive reform in a parliamentary system, but now includes mixed economies), democratic socialism is an end. I haven't played this game, so i don't know if socialism is for sure the end goal. It's definitely social democratic, social democracy and democratic socialism aren't mutually exclusive things.

Power corrupts. 

But there is some socialist policies too: supporting union, co-operative, worker owned corporation, nationalisation of banks, industries and so on.

Here is a few: