This is something the right has mastered. That’s not a good thing. Not at all. But many of the them practice it. When you really have nothing constructive to say, when you offer no solutions, and when you’ve been guilty of horrible mistakes that have cost the US, I guess this is the only game left.

http://www.msnbc.com/rachel-maddow-show/rubio-unsatisfied-the-course-he-urged-obama-take