Politicians seem to have various techniques.
For instance, if an opponent does something with which you disagree you call him out but what do you do if he does something you like? You can't say "Good job!" so the, instead, they go with: "Too little; too late!"
Another useful answer is: "I have seen no evidence of that." That one is used when, recognising a potentially embarrassing situation raising its head, they forbid any member of staff to show them anything on the subject on pain of death.
Instead of "So" I have heard "I would just like to say" used as an alternative.
One race team manager always used to start his answers with: "Yes, no." I think his thought process was: Yes, I understand the question but I don't agree with where it is going. It still sounded funny, though.