Liberals care about Rubio because they know he won’t put up a fight, and will be easily beaten. They are afraid of Trump to the point where they are planning on “keeping Hillary above the fray” and have Bill and 0bama take on Trump. Of course, that just makes Hillary look like a hot house orchid, unable to stand up for herself, and in need of big strong men to do the work for her.
That would be an interesting strategy. Trump could say to Bill "I understand you're sticking up for your wife. And your wife puts up with everything you do and stands by her man and covers up everything you do. But right now it's your wife who is running for President and not you. So send out your wife when you want my response.".
What could he say with Obama?