I don’t think that Jeff Sessions having contact with Russia necessarily means anything nefarious was going on, but either way he committed perjury and he must step down.
And regarding the Trump tweet;
It is so pathetic that the Dems have still not approved my full Cabinet.
That’s absurd. Trump has picked some of the worst possible people for his cabinet. Every single Democrat should be denying picks like Jeff Sessions (I’m looking at you, Joe Manchin).