Ad hominem noted and dismissed. What about the Heritage Foundation (who agreed with the Concorde Coalition)?
Wrong. Again. We are at
Debate Politics. The nature of debate involves some type of rational argument, generally bolstered by facts. Of course there is room and even points for flair or the dramatic or even the emotional (depending on the setting and the audience), but mere unsubstantiated opinions are for blogs.
To clarify, opinions are fine if the reasoning for the opinion is provided -- in which case one is providing a reasoned conclusion rather than a mere opinion. For example, while it may be your opinion that center left think tanks only produce lies or inaccurate information, your opinion alone does not qualify as debate (in fact, logical fallacies such as that will lose you points in a formal debate).
'Because I say so' is not an argument. At least not beyond, say, age 8