Many people, when delivering a speech or media interview, like to present data that unequivocally support their point of view.
If you’re a conservative politician, for example, you might cite a statistic from the conservative Heritage Foundation to bolster your proposal’s credibility.
But it’s even more powerful to quote a source the audience wouldn’t expect you to embrace.
For example, imagine you’re a liberal politician who supports a health care individual mandate. You might say: