Well yoyo that could be a product of well... you know armchair political enthuisiasm? these arent americans who are offering up far more logical outcomes than most of the "actual" americans.
Bernie wont win. His campaign is not even about winning. Everything in his campaign is about setting the stage for a political revolution of social democracy that is ahead of its time. We still need Republicans to majorly fuck everything up again for that movement to happen. Right now were coming off the back of a pretty successful presidency lasting 8 years with no major military failures unless you count the (was it 6 people?) who died in Libya? Who even knows... not even sure Republicans know at this point.
Anyway to stay on topic worst case scenario say Hilary loses to Cruz in a general election. Well Cruz will not take long to irreversibly fuck something up. I would argue Cruz would be even more toxic than GW Bush for job growth and american foreign policy. We would be fully at war with Iran, Syria, Isis and maybe even North Korea within 2 years of a Cruz presidency.
A Trump presidency would actually be hilarious. Because hes a total liar. Nothing he has promised Republicans on the campaign trail will ever happen and he knows it. As President Trump would go left and completely fuck his own party over because he hates being controlled or strongarmed. If anyone is going to do the strongarming its Trump.
Hillary and Bernie will have identical Presidencies regardless of who wins for the first two years. No Republicans in Congress give a shit which wins they would block every bit of liberal legislation that either tries to throw out there. They hated Obama they arent going to suddenly become generous. This is a Congress with a 13% approval rating. Sanders is right we need a Revolution! Every single member of Congress needs to be dropped off in the Ocean somewhere at this point.
Senate race is much closer. I imagine it will be quite heated as the races amp up in the fall. You could be looking at any one of 3 scenarios, a Democrat takeover of senate (most likely), a Republican control of Senate remains (maybe), or a Tie, which would throw it to whichever side claims the Presidency.
Keep in mind the Senate is losing Rubio and Sanders. But it looks like Rand Paul is scurrying back to his principled little ivory tower for now.
In conclusion so much attention is being paid to the Presidency here, and really the key part of Sanders message is being lost to his supporters. WE NEED A ALL OF THE ABOVE REVOLUTION! Congress, Senate, Supreme Court, Presidency! All of it to make these dreams of cheaper education, and healthcare a reality.