this stuff? convenient or -- what is it? you have rubbed a lot of former colleagues the wrong way? >> yeah. because i am a real leader who wants to get the congress to do things. i am not interested in guys getting their pork projects. i am not intg interested in guys getting their turf. i am interesting in getting things done. >> greta: what's the difference between getting things done and being a bull in a china shop and not accomplishing something? >> first of all, it's thoughtful purpose. i got four balanced budgets. i worked with the army's training and doctors program on how to you develop, implement and train new battle doctors. i am the longest serving teacher in the military. steadily, methodically doing something. >> greta: straight ahead, more with speaker gingrich. we asked him, why former governor jeb bush and senator marco rubio are not only not going to back him, but they are criticizing him?