Bernie Sanders and Dennis Kucinich speak out for a reason-they know they are not going further
therefore, they can say what they want and hope to be reelected to their non-Presidential job time and again if enough of the local voters agree with them
(in Dennis' case of course he has temporarily been gerrymandered out)
However, like the song says, they have freedom and nothing left to lose
Where each of them, and all those like them, who are smart enough to know they will never attain higher office, are secure in not having to temper down their remarks to reach the higher office, that with their views they never will get
Each party has people like this.
Those in the democratic party are great smart people. Smart enough to know what I say is true
And Kucinich and Sanders back fully the President when their individual vote is needed to be deciding votes on major issues.
And they vote against when their vote doesn't matter as to the outcome
It's quite simple.
And they both are team players on the one of two teams in power.