More on President Bernie
As previously noted, probably the best you could hope that a Sanders victory would bring in on his coattails is a close to even senate and a smaller GOP majority in the house.
Further, if you anticipate the makeup of that Republican delegation it is almost 100% certain to be even more belligerent- republicans who even pretend to be reasonable are on the endangered species list.
So you would expect even more obstruction and gridlock than the last 7 years.
Whether that is bad or good, I'll take it as compared to a hard right republican supermajority which won;t care about governing, it will care about establishing permanent minority rule.